Business Analytics Interview Questions & Answers (2026)

COUNT(*) counts all rows; COUNT(column) counts only rows where that column is not NULL.

Pareto principle: about 80% of outcomes come from 20% of causes, such as most revenue from a few customers or most defects from a few issues.

An Excel add-in for building data models with relationships and DAX measures over millions of rows, beyond normal worksheet limits.

A query nested inside another, used for filtering or calculating values such as customers whose spend is above the average.

A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.

Check data accuracy, then segment by city, restaurant, time and user type; look at supply, delivery time, pricing, competitors and seasonality before proposing fixes.

Waterfall runs fixed phases one after another with requirements frozen early. Agile delivers in short sprints with continuous feedback, so requirements can change. In Agile, BAs maintain the backlog and user stories.

A what-if tool that recalculates a formula for different inputs, for example loan payments across different rates and tenures.

A use case describes the full interaction between an actor and the system (main and alternate flows). A user story is a short statement of need from the user's point of view, refined with acceptance criteria.

A table linking each requirement to design, test cases and delivery status, ensuring nothing is missed and helping assess change impact.

Excel suits small to medium data and quick ad-hoc work; SQL queries large databases directly and repeatably.

Low-fidelity layouts of screens that help stakeholders visualise and agree on requirements before development starts.

A BRD states what the business needs and why. An FRD details how the system should behave to meet those needs (functional specifications).

Use MoSCoW (Must, Should, Could, Won't), value versus effort scoring or the Kano model, agreed with stakeholders based on business value and risk.

Interviews, workshops, surveys, observation, document analysis, prototyping and brainstorming, chosen according to stakeholders and project stage.

Product, Price, Place and Promotion, the levers a business uses to bring an offering to market.

Create a table, insert a PivotTable, drag region to rows, product to columns, sales to values, and add slicers for month or channel.

A model classifying features as basic, performance or delight attributes based on how they affect customer satisfaction, helping decide what to build first.

Decide whether and how to enter a market by evaluating attractiveness, competition, capabilities and entry mode (build, buy, partner), then risks and next steps.

Population about 20 million, adult tea drinkers about 50%, cups bought outside per person around 1 on average. This gives roughly 10 million cups, then adjust for offices and stalls.

A column or set of columns that uniquely identifies each row in a table and cannot contain NULL.

Log the change, assess impact on scope, cost and timeline, get approval through change control or backlog grooming, and update documents and stakeholders.

Structure it: households × car-owning share ÷ replacement cycle + first-time buyers + commercial fleet. State each assumption clearly and sanity-check the final number.

CAGR = (End value / Start value)^(1/years) - 1, entered as =(B2/A2)^(1/n)-1.

Prepare clean data, build PivotTables and PivotCharts, add KPI cards and slicers, and arrange everything on one sheet with a clear layout.

WITH m AS (SELECT month, SUM(amount) AS rev FROM orders GROUP BY month) SELECT month, rev, ROUND(100.0 * (rev - LAG(rev) OVER (ORDER BY month)) / LAG(rev) OVER (ORDER BY month), 1) AS mom_pct FROM m;

Testing how changes in key inputs such as price or volume affect the output, in Excel using data tables or scenario manager.

Pareto principle: about 80% of outcomes come from 20% of causes, such as most revenue from a few customers or most defects from a few issues.

An Excel add-in for building data models with relationships and DAX measures over millions of rows, beyond normal worksheet limits.

Variance = Actual - Budget, shown as amount and percentage, with conditional formatting to flag large gaps and comments on the drivers.

Create a line or column chart of actuals and add the target as another series formatted as a line.

Waterfall runs fixed phases one after another with requirements frozen early. Agile delivers in short sprints with continuous feedback, so requirements can change. In Agile, BAs maintain the backlog and user stories.

Stakeholders and the sponsor review the Business Requirements Document for completeness and accuracy, and the business owner gives formal sign-off before design begins.

CAGR = (End value / Start value)^(1/years) - 1, entered as =(B2/A2)^(1/n)-1.

Break-even units = Fixed costs ÷ (Price − Variable cost per unit). Add a data table to test different price and volume scenarios.

The total profit expected from a customer over the relationship, roughly average margin x purchase frequency x lifespan, compared with acquisition cost.

Create a table, insert a PivotTable, drag region to rows, product to columns, sales to values, and add slicers for month or channel.

Product, Price, Place and Promotion, the levers a business uses to bring an offering to market.

Get distinct user-month pairs, self-join or use LAG on month per user, and keep rows where the previous month is exactly one month earlier.

Anyone affected by or influencing the project: sponsors, product owners, end users, developers, testers, operations and customers.

A column or set of columns that uniquely identifies each row in a table and cannot contain NULL.

GROUP BY aggregates rows by column; WHERE filters before grouping and HAVING filters after, using aggregate conditions.

Fixed costs stay constant regardless of volume, such as rent; variable costs change with volume, such as raw materials.

Clear, testable conditions a story must meet to be accepted, often written as Given-When-Then scenarios.

Use historical data with FORECAST.ETS or trend lines, state assumptions, compare against actuals and show best, base and worst scenarios.

A chart shows one view of data; a dashboard combines several charts and KPIs on one page for monitoring.

A table assigning Responsible, Accountable, Consulted and Informed roles per task so ownership is clear.

Top-down: two-wheeler market x EV share x addressable segment. Bottom-up: target households x adoption rate x price. Compare both for a sanity check.

Define churn, analyse who leaves and why, segment customers, find drivers through data and surveys, design retention offers and measure uplift with a control group.

Log the change, assess impact on scope, cost and timeline, get approval through change control or backlog grooming, and update documents and stakeholders.

Prepare clean data, build PivotTables and PivotCharts, add KPI cards and slicers, and arrange everything on one sheet with a clear layout.

They help the Product Owner refine the backlog, write stories and acceptance criteria, clarify details with developers and support testing and demos.

OLTP handles many small day-to-day transactions; OLAP supports analysis over large historical data with aggregates and reporting.

Population about 20 million, adult tea drinkers about 50%, cups bought outside per person around 1 on average. This gives roughly 10 million cups, then adjust for offices and stalls.

The sales volume where total revenue equals total cost. It equals fixed cost divided by contribution margin per unit.

Score them with RICE or value-vs-effort, align with goals, consider dependencies and risks, validate with stakeholders, then use MoSCoW for the release plan.

A language for querying databases. BAs use it to pull data themselves, validate numbers, check reports and answer questions without waiting for engineers.

Look at the cost side: heavier discounts, higher CAC, logistics costs, product mix shifting to low-margin items, one-time expenses or pricing changes. Break contribution margin down by segment.

A what-if tool that recalculates a formula for different inputs, for example loan payments across different rates and tenures.

Check row counts against the source, nulls, duplicates on keys, value ranges, date coverage and that totals reconcile with finance reports.

Combine cost-plus, competitor benchmarks and willingness to pay from research, test tiers with experiments and check margin and churn impact.

The product backlog is the ordered list of all desired work; the sprint backlog is the subset the team commits to in the current sprint.

Use FORECAST.ETS or a trendline on monthly history, check seasonality, compare with a simple moving average and present a range, not a single number.

Use STAR: Situation, Task, Action, Result. Show that you listened, found the underlying goal, used data to align people and reached a documented decision.

Number of outlets x daily customers x average bill x operating days, then validate using footfall, peak hours and similar chains.

Break sales into footfall, conversion and average basket, compare with last year and competitors, and check stock, pricing, staffing and local events.

Agile delivers value in small increments with feedback. Scrum organises work in sprints with planning, daily stand-ups, review and retrospective, led by a Scrum Master and Product Owner.

Interviews, workshops, surveys, observation, document analysis, prototyping and brainstorming, chosen according to stakeholders and project stage.

Clarify the underlying goals, present data and trade-offs, facilitate a joint session, escalate to the sponsor if needed and document the agreed decision.

Goal Seek (find the input for a target output), Data Tables (see outputs for many inputs) and Scenario Manager (save best, base and worst cases).

It returns a custom value when a formula errors out, keeping reports clean, for example =IFERROR(VLOOKUP(...), "Not found").

An Excel add-in for building data models with relationships and DAX measures over millions of rows, beyond normal worksheet limits.

A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.

A query nested inside another, used for filtering or calculating values such as customers whose spend is above the average.

Use MoSCoW (Must, Should, Could, Won't), value versus effort scoring or the Kano model, agreed with stakeholders based on business value and risk.

Clarify the goal behind each request, map them to business objectives, prioritise with MoSCoW, run a joint session, then document the decision and get sign-off.

Functional requirements describe what the system does (login, reports); non-functional ones describe how well it does it (speed, security, availability, usability).

A use case describes the full interaction between an actor and the system (main and alternate flows). A user story is a short statement of need from the user's point of view, refined with acceptance criteria.

VLOOKUP or XLOOKUP, INDEX-MATCH, SUMIFS, COUNTIFS, IF, text functions, PivotTables and charts.

Check data accuracy, then segment by city, restaurant, time and user type; look at supply, delivery time, pricing, competitors and seasonality before proposing fixes.

A measurable value showing progress to a goal, such as conversion rate, average order value, cart abandonment rate and customer retention.

Check market size (population, online ordering share), competition, restaurant supply, unit economics per order, CAC and payback period. Propose a pilot with clear success metrics.

Use MoSCoW (Must, Should, Could, Won't), value versus effort scoring or the Kano model, agreed with stakeholders based on business value and risk.

Use tables, Power Query, remove volatile functions, filter before calculating and move to Power Pivot or a database when rows reach the millions.

Use STAR: Situation, Task, Action, Result. Show that you listened, found the underlying goal, used data to align people and reached a documented decision.

Look at the cost side: heavier discounts, higher CAC, logistics costs, product mix shifting to low-margin items, one-time expenses or pricing changes. Break contribution margin down by segment.

XLOOKUP can look left or right, uses exact match by default, returns a custom value if nothing is found and doesn't break when columns move. VLOOKUP only looks right and needs a column number.

Clear, testable conditions a story must meet to be accepted, often written as Given-When-Then scenarios.

Number of outlets x daily customers x average bill x operating days, then validate using footfall, peak hours and similar chains.

Uncontrolled growth of requirements. Control it with a clear scope statement, change control process, impact analysis and sponsor approval for additions.

Excel suits small to medium data and quick ad-hoc work; SQL queries large databases directly and repeatably.

SUM(sales) per category divided by SUM(SUM(sales)) OVER () and multiplied by 100 gives each category's share of the total.

A BA bridges business and technology: gathers requirements, analyses data and processes, documents BRD/FRD and makes sure the final solution actually solves the business problem.

VLOOKUP or XLOOKUP, INDEX-MATCH, SUMIFS, COUNTIFS, IF, text functions, PivotTables and charts.

Clarify the goal behind each request, map them to business objectives, prioritise with MoSCoW, run a joint session, then document the decision and get sign-off.

A diagram of steps, decisions and owners in a process, made using BPMN or flowcharts in tools like Visio, Lucidchart or draw.io.

Every KPI is a metric, but a KPI is tied directly to a strategic goal (e.g. monthly churn). A metric can be any measurement (e.g. page views).

Assess market size and demand, customer need, competition, unit economics, capabilities, risks and strategic fit, then test with a pilot before scale-up.

Map the funnel, find the biggest drop-off, check usability and load time, run A/B tests on fixes and track conversion lift.

Break-even units = Fixed costs ÷ (Price − Variable cost per unit). Add a data table to test different price and volume scenarios.

Both look up values flexibly; XLOOKUP is simpler with built-in not-found handling, while INDEX-MATCH works in older Excel versions.

Structure it: households × car-owning share ÷ replacement cycle + first-time buyers + commercial fleet. State each assumption clearly and sanity-check the final number.

Define churn, analyse who leaves and why, segment customers, find drivers through data and surveys, design retention offers and measure uplift with a control group.

Population about 20 million, adult tea drinkers about 50%, cups bought outside per person around 1 on average. This gives roughly 10 million cups, then adjust for offices and stalls.

CAGR = (End value / Start value)^(1/years) - 1, entered as =(B2/A2)^(1/n)-1.

Check data accuracy, then segment by city, restaurant, time and user type; look at supply, delivery time, pricing, competitors and seasonality before proposing fixes.

Log the change, assess impact on scope, cost and timeline, get approval through change control or backlog grooming, and update documents and stakeholders.

A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.

Top-down: two-wheeler market x EV share x addressable segment. Bottom-up: target households x adoption rate x price. Compare both for a sanity check.

GROUP BY aggregates rows by column; WHERE filters before grouping and HAVING filters after, using aggregate conditions.

Check row counts against the source, nulls, duplicates on keys, value ranges, date coverage and that totals reconcile with finance reports.

Check market size (population, online ordering share), competition, restaurant supply, unit economics per order, CAC and payback period. Propose a pilot with clear success metrics.

Score them with RICE or value-vs-effort, align with goals, consider dependencies and risks, validate with stakeholders, then use MoSCoW for the release plan.

Product, Price, Place and Promotion, the levers a business uses to bring an offering to market.

Define a goal metric, a baseline and guardrail metrics, run an experiment or before-after comparison and review adoption, retention and revenue impact.

About 20 million people, roughly 10% order pizza on a weekend, about 1 pizza per 2 people in an order. This gives roughly 1 million pizzas, adjusted for outlets and delivery capacity.

Decide whether and how to enter a market by evaluating attractiveness, competition, capabilities and entry mode (build, buy, partner), then risks and next steps.

They help the Product Owner refine the backlog, write stories and acceptance criteria, clarify details with developers and support testing and demos.

Reconcile totals with source tables using SQL, check filters and joins for duplication, compare with prior periods and verify with business owners.

Waterfall runs fixed phases one after another with requirements frozen early. Agile delivers in short sprints with continuous feedback, so requirements can change. In Agile, BAs maintain the backlog and user stories.

Split into revenue and cost, then revenue into price, volume and mix, and cost into fixed and variable; check internal factors and external market factors.

OLTP handles many small day-to-day transactions; OLAP supports analysis over large historical data with aggregates and reporting.

A table assigning Responsible, Accountable, Consulted and Informed roles per task so ownership is clear.

Define named scenarios such as best, base and worst with different input values and compare the outputs in a summary report.

The sales volume where total revenue equals total cost. It equals fixed cost divided by contribution margin per unit.

Use STAR: Situation, Task, Action, Result. Show that you listened, found the underlying goal, used data to align people and reached a documented decision.

A use case describes the full interaction between an actor and the system (main and alternate flows). A user story is a short statement of need from the user's point of view, refined with acceptance criteria.

Aggregate revenue per month and use LAG(revenue) OVER (ORDER BY month) to compute (revenue - previous) / previous.

A column or set of columns that uniquely identifies each row in a table and cannot contain NULL.

VLOOKUP or XLOOKUP, INDEX-MATCH, SUMIFS, COUNTIFS, IF, text functions, PivotTables and charts.

WITH m AS (SELECT month, SUM(amount) AS rev FROM orders GROUP BY month) SELECT month, rev, ROUND(100.0 * (rev - LAG(rev) OVER (ORDER BY month)) / LAG(rev) OVER (ORDER BY month), 1) AS mom_pct FROM m;

Reconcile totals with source tables using SQL, check filters and joins for duplication, compare with prior periods and verify with business owners.

Check row counts against the source, nulls, duplicates on keys, value ranges, date coverage and that totals reconcile with finance reports.

Prepare clean data, build PivotTables and PivotCharts, add KPI cards and slicers, and arrange everything on one sheet with a clear layout.

Break-even units = Fixed costs ÷ (Price − Variable cost per unit). Add a data table to test different price and volume scenarios.

Variance = Actual - Budget, shown as amount and percentage, with conditional formatting to flag large gaps and comments on the drivers.

Use historical data with FORECAST.ETS or trend lines, state assumptions, compare against actuals and show best, base and worst scenarios.

Use tables, Power Query, remove volatile functions, filter before calculating and move to Power Pivot or a database when rows reach the millions.

Interviews, workshops, surveys, observation, document analysis, prototyping and brainstorming, chosen according to stakeholders and project stage.

Score them with RICE or value-vs-effort, align with goals, consider dependencies and risks, validate with stakeholders, then use MoSCoW for the release plan.

GROUP BY aggregates rows by column; WHERE filters before grouping and HAVING filters after, using aggregate conditions.

A UML diagram showing actors and the actions (use cases) they perform with the system, giving a quick view of scope.

A BA bridges business and technology: gathers requirements, analyses data and processes, documents BRD/FRD and makes sure the final solution actually solves the business problem.

A language for querying databases. BAs use it to pull data themselves, validate numbers, check reports and answer questions without waiting for engineers.

Fixed costs stay constant regardless of volume, such as rent; variable costs change with volume, such as raw materials.

Top-down: two-wheeler market x EV share x addressable segment. Bottom-up: target households x adoption rate x price. Compare both for a sanity check.

A named temporary result introduced with WITH that makes long queries readable and reusable in the same statement.

Use FORECAST.ETS or a trendline on monthly history, check seasonality, compare with a simple moving average and present a range, not a single number.

As a customer, I want to reset my password by email so that I can get back into my account. Acceptance criteria: • Reset link expires in 15 minutes • Password rules are shown while typing • A success message appears after reset

Agile delivers value in small increments with feedback. Scrum organises work in sprints with planning, daily stand-ups, review and retrospective, led by a Scrum Master and Product Owner.

INNER returns only matching rows; LEFT returns all rows from the left table and NULLs where there is no match.

Define a goal metric, a baseline and guardrail metrics, run an experiment or before-after comparison and review adoption, retention and revenue impact.

SUM(sales) per category divided by SUM(SUM(sales)) OVER () and multiplied by 100 gives each category's share of the total.

Get distinct user-month pairs, self-join or use LAG on month per user, and keep rows where the previous month is exactly one month earlier.

Profit = Revenue minus Cost, where revenue = price x volume and cost = fixed + variable. Split each part to find which one explains a change.

Waterfall runs fixed phases one after another with requirements frozen early. Agile delivers in short sprints with continuous feedback, so requirements can change. In Agile, BAs maintain the backlog and user stories.

Clarify the scope, break the problem into logical parts, state assumptions with round numbers, compute step by step and sanity-check the answer.

A table linking each requirement to design, test cases and delivery status, ensuring nothing is missed and helping assess change impact.

Functional requirements describe what the system does (login, reports); non-functional ones describe how well it does it (speed, security, availability, usability).

Create a table, insert a PivotTable, drag region to rows, product to columns, sales to values, and add slicers for month or channel.

A what-if tool that recalculates a formula for different inputs, for example loan payments across different rates and tenures.

Review > Protect Sheet or Workbook with a password, lock cells, hide formulas and allow only selected cells to be edited.

Decide whether and how to enter a market by evaluating attractiveness, competition, capabilities and entry mode (build, buy, partner), then risks and next steps.

Testing how changes in key inputs such as price or volume affect the output, in Excel using data tables or scenario manager.

Compare the current state (as-is) with the desired state (to-be), list the gaps in process, people or technology, and plan actions to close them.

A diagram of steps, decisions and owners in a process, made using BPMN or flowcharts in tools like Visio, Lucidchart or draw.io.

Strengths and Weaknesses are internal; Opportunities and Threats are external. Example: S = strong faculty, W = low brand awareness, O = AI upskilling demand, T = free online content.

Anyone affected by or influencing the project: sponsors, product owners, end users, developers, testers, operations and customers.

Stakeholders and the sponsor review the Business Requirements Document for completeness and accuracy, and the business owner gives formal sign-off before design begins.

A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.

The total profit expected from a customer over the relationship, roughly average margin x purchase frequency x lifespan, compared with acquisition cost.

COUNT(*) counts all rows; COUNT(column) counts only rows where that column is not NULL.

Low-fidelity layouts of screens that help stakeholders visualise and agree on requirements before development starts.

Get distinct user-month pairs, self-join or use LAG on month per user, and keep rows where the previous month is exactly one month earlier.

A named temporary result introduced with WITH that makes long queries readable and reusable in the same statement.

Clarify the goal behind each request, map them to business objectives, prioritise with MoSCoW, run a joint session, then document the decision and get sign-off.

VLOOKUP or XLOOKUP, INDEX-MATCH, SUMIFS, COUNTIFS, IF, text functions, PivotTables and charts.

Number of outlets x daily customers x average bill x operating days, then validate using footfall, peak hours and similar chains.

Strengths and Weaknesses are internal; Opportunities and Threats are external. Example: S = strong faculty, W = low brand awareness, O = AI upskilling demand, T = free online content.

As a customer, I want to reset my password by email so that I can get back into my account. Acceptance criteria: • Reset link expires in 15 minutes • Password rules are shown while typing • A success message appears after reset

COUNT(*) counts all rows; COUNT(column) counts only rows where that column is not NULL.

Population about 20 million, adult tea drinkers about 50%, cups bought outside per person around 1 on average. This gives roughly 10 million cups, then adjust for offices and stalls.

Assess market size and demand, customer need, competition, unit economics, capabilities, risks and strategic fit, then test with a pilot before scale-up.

Functional requirements describe what the system does (login, reports); non-functional ones describe how well it does it (speed, security, availability, usability).

It returns a custom value when a formula errors out, keeping reports clean, for example =IFERROR(VLOOKUP(...), "Not found").

It breaks a top metric into drivers: Revenue = Users × Conversion × AOV; Users = New + Returning, and so on. It shows which lever to pull and where a drop came from.

Map the funnel, find the biggest drop-off, check usability and load time, run A/B tests on fixes and track conversion lift.

Prepare clean data, build PivotTables and PivotCharts, add KPI cards and slicers, and arrange everything on one sheet with a clear layout.

A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.

A diagram of steps, decisions and owners in a process, made using BPMN or flowcharts in tools like Visio, Lucidchart or draw.io.

A what-if tool that recalculates a formula for different inputs, for example loan payments across different rates and tenures.

Top-down: NCR population aged 18–30 × share of graduates × share wanting paid upskilling × average fee. Cross-check bottom-up with institutes × batches × students × fees. State your assumptions.

Score them with RICE or value-vs-effort, align with goals, consider dependencies and risks, validate with stakeholders, then use MoSCoW for the release plan.

Break-even units = Fixed costs ÷ (Price − Variable cost per unit). Add a data table to test different price and volume scenarios.

Anyone affected by or influencing the project: sponsors, product owners, end users, developers, testers, operations and customers.

Look at the cost side: heavier discounts, higher CAC, logistics costs, product mix shifting to low-margin items, one-time expenses or pricing changes. Break contribution margin down by segment.

Testing how changes in key inputs such as price or volume affect the output, in Excel using data tables or scenario manager.

An Excel add-in for building data models with relationships and DAX measures over millions of rows, beyond normal worksheet limits.

The total profit expected from a customer over the relationship, roughly average margin x purchase frequency x lifespan, compared with acquisition cost.

Top-down: two-wheeler market x EV share x addressable segment. Bottom-up: target households x adoption rate x price. Compare both for a sanity check.

Use STAR: Situation, Task, Action, Result. Show that you listened, found the underlying goal, used data to align people and reached a documented decision.

Log the change, assess impact on scope, cost and timeline, get approval through change control or backlog grooming, and update documents and stakeholders.

Clear, testable conditions a story must meet to be accepted, often written as Given-When-Then scenarios.

A BRD states what the business needs and why. An FRD details how the system should behave to meet those needs (functional specifications).

Interviews, workshops, surveys, observation, document analysis, prototyping and brainstorming, chosen according to stakeholders and project stage.

Fixed costs stay constant regardless of volume, such as rent; variable costs change with volume, such as raw materials.

GROUP BY aggregates rows by column; WHERE filters before grouping and HAVING filters after, using aggregate conditions.

Decide whether and how to enter a market by evaluating attractiveness, competition, capabilities and entry mode (build, buy, partner), then risks and next steps.

Create a table, insert a PivotTable, drag region to rows, product to columns, sales to values, and add slicers for month or channel.

Aggregate revenue per month and use LAG(revenue) OVER (ORDER BY month) to compute (revenue - previous) / previous.

Pareto principle: about 80% of outcomes come from 20% of causes, such as most revenue from a few customers or most defects from a few issues.

INNER returns only matching rows; LEFT returns all rows from the left table and NULLs where there is no match.

A UML diagram showing actors and the actions (use cases) they perform with the system, giving a quick view of scope.

SUM(sales) per category divided by SUM(SUM(sales)) OVER () and multiplied by 100 gives each category's share of the total.

Both look up values flexibly; XLOOKUP is simpler with built-in not-found handling, while INDEX-MATCH works in older Excel versions.

Split into revenue and cost, then revenue into price, volume and mix, and cost into fixed and variable; check internal factors and external market factors.

Break sales into footfall, conversion and average basket, compare with last year and competitors, and check stock, pricing, staffing and local events.

Use FORECAST.ETS or a trendline on monthly history, check seasonality, compare with a simple moving average and present a range, not a single number.

The sales volume where total revenue equals total cost. It equals fixed cost divided by contribution margin per unit.

WITH m AS (SELECT month, SUM(amount) AS rev FROM orders GROUP BY month) SELECT month, rev, ROUND(100.0 * (rev - LAG(rev) OVER (ORDER BY month)) / LAG(rev) OVER (ORDER BY month), 1) AS mom_pct FROM m;

Define churn, analyse who leaves and why, segment customers, find drivers through data and surveys, design retention offers and measure uplift with a control group.

A model classifying features as basic, performance or delight attributes based on how they affect customer satisfaction, helping decide what to build first.

Define named scenarios such as best, base and worst with different input values and compare the outputs in a summary report.

Goal Seek (find the input for a target output), Data Tables (see outputs for many inputs) and Scenario Manager (save best, base and worst cases).

A framework listing internal Strengths and Weaknesses and external Opportunities and Threats to assess a project or business position.

Variance = Actual - Budget, shown as amount and percentage, with conditional formatting to flag large gaps and comments on the drivers.

AVG ignores NULLs; use COALESCE(col, 0) if NULLs should count as zero, depending on the business meaning.

A use case describes the full interaction between an actor and the system (main and alternate flows). A user story is a short statement of need from the user's point of view, refined with acceptance criteria.

Use historical data with FORECAST.ETS or trend lines, state assumptions, compare against actuals and show best, base and worst scenarios.

Revenue is total money from sales; profit is what remains after subtracting all costs and expenses.

XLOOKUP can look left or right, uses exact match by default, returns a custom value if nothing is found and doesn't break when columns move. VLOOKUP only looks right and needs a column number.

Check data accuracy, then segment by city, restaurant, time and user type; look at supply, delivery time, pricing, competitors and seasonality before proposing fixes.

Product, Price, Place and Promotion, the levers a business uses to bring an offering to market.

A measurable value showing progress to a goal, such as conversion rate, average order value, cart abandonment rate and customer retention.

Get distinct user-month pairs, self-join or use LAG on month per user, and keep rows where the previous month is exactly one month earlier.

INNER returns only matching rows; LEFT returns all rows from the left table and NULLs where there is no match.

Agile delivers value in small increments with feedback. Scrum organises work in sprints with planning, daily stand-ups, review and retrospective, led by a Scrum Master and Product Owner.

Combine cost-plus, competitor benchmarks and willingness to pay from research, test tiers with experiments and check margin and churn impact.

Goal Seek (find the input for a target output), Data Tables (see outputs for many inputs) and Scenario Manager (save best, base and worst cases).

A UML diagram showing actors and the actions (use cases) they perform with the system, giving a quick view of scope.

Waterfall runs fixed phases one after another with requirements frozen early. Agile delivers in short sprints with continuous feedback, so requirements can change. In Agile, BAs maintain the backlog and user stories.

Testing how changes in key inputs such as price or volume affect the output, in Excel using data tables or scenario manager.

Aggregate revenue per month and use LAG(revenue) OVER (ORDER BY month) to compute (revenue - previous) / previous.

AVG ignores NULLs; use COALESCE(col, 0) if NULLs should count as zero, depending on the business meaning.

A use case describes the full interaction between an actor and the system (main and alternate flows). A user story is a short statement of need from the user's point of view, refined with acceptance criteria.

A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.

Create a table, insert a PivotTable, drag region to rows, product to columns, sales to values, and add slicers for month or channel.

Create a line or column chart of actuals and add the target as another series formatted as a line.

Assess market size and demand, customer need, competition, unit economics, capabilities, risks and strategic fit, then test with a pilot before scale-up.

The smallest version of a product with enough features to deliver value and gather real user feedback before investing more.

The product backlog is the ordered list of all desired work; the sprint backlog is the subset the team commits to in the current sprint.

Top-down: NCR population aged 18–30 × share of graduates × share wanting paid upskilling × average fee. Cross-check bottom-up with institutes × batches × students × fees. State your assumptions.

OLTP handles many small day-to-day transactions; OLAP supports analysis over large historical data with aggregates and reporting.

XLOOKUP can look left or right, uses exact match by default, returns a custom value if nothing is found and doesn't break when columns move. VLOOKUP only looks right and needs a column number.

Profit = Revenue minus Cost, where revenue = price x volume and cost = fixed + variable. Split each part to find which one explains a change.

Use MoSCoW (Must, Should, Could, Won't), value versus effort scoring or the Kano model, agreed with stakeholders based on business value and risk.

ROI = (incremental profit - campaign cost) / campaign cost. Measure incremental sales using a control group or before-after comparison.

An Excel add-in for building data models with relationships and DAX measures over millions of rows, beyond normal worksheet limits.

Use STAR: Situation, Task, Action, Result. Show that you listened, found the underlying goal, used data to align people and reached a documented decision.

A diagram of steps, decisions and owners in a process, made using BPMN or flowcharts in tools like Visio, Lucidchart or draw.io.

Define named scenarios such as best, base and worst with different input values and compare the outputs in a summary report.

Both look up values flexibly; XLOOKUP is simpler with built-in not-found handling, while INDEX-MATCH works in older Excel versions.

A language for querying databases. BAs use it to pull data themselves, validate numbers, check reports and answer questions without waiting for engineers.

Functions that summarise rows into a value, such as COUNT, SUM, AVG, MIN and MAX.

VLOOKUP or XLOOKUP, INDEX-MATCH, SUMIFS, COUNTIFS, IF, text functions, PivotTables and charts.

Population about 20 million, adult tea drinkers about 50%, cups bought outside per person around 1 on average. This gives roughly 10 million cups, then adjust for offices and stalls.

The total profit expected from a customer over the relationship, roughly average margin x purchase frequency x lifespan, compared with acquisition cost.

A what-if tool that recalculates a formula for different inputs, for example loan payments across different rates and tenures.

SUM(sales) per category divided by SUM(SUM(sales)) OVER () and multiplied by 100 gives each category's share of the total.

Check row counts against the source, nulls, duplicates on keys, value ranges, date coverage and that totals reconcile with finance reports.

Interviews, workshops, surveys, observation, document analysis, prototyping and brainstorming, chosen according to stakeholders and project stage.

An early assessment of whether a proposed solution is technically, economically, operationally and legally viable before committing budget.

A table linking each requirement to design, test cases and delivery status, ensuring nothing is missed and helping assess change impact.

Define churn, analyse who leaves and why, segment customers, find drivers through data and surveys, design retention offers and measure uplift with a control group.

COUNT(*) counts all rows; COUNT(column) counts only rows where that column is not NULL.

A model classifying features as basic, performance or delight attributes based on how they affect customer satisfaction, helping decide what to build first.

A short requirement written as 'As a user, I want X so that Y', backed by acceptance criteria. Good stories follow INVEST: independent, negotiable, valuable, estimable, small and testable.

Clarify the scope, break the problem into logical parts, state assumptions with round numbers, compute step by step and sanity-check the answer.

Fixed costs stay constant regardless of volume, such as rent; variable costs change with volume, such as raw materials.

Split into revenue and cost, then revenue into price, volume and mix, and cost into fixed and variable; check internal factors and external market factors.

Map the funnel, find the biggest drop-off, check usability and load time, run A/B tests on fixes and track conversion lift.

Use tables, Power Query, remove volatile functions, filter before calculating and move to Power Pivot or a database when rows reach the millions.

They help the Product Owner refine the backlog, write stories and acceptance criteria, clarify details with developers and support testing and demos.

Clarify the underlying goals, present data and trade-offs, facilitate a joint session, escalate to the sponsor if needed and document the agreed decision.

Look at the cost side: heavier discounts, higher CAC, logistics costs, product mix shifting to low-margin items, one-time expenses or pricing changes. Break contribution margin down by segment.

As a customer, I want to reset my password by email so that I can get back into my account. Acceptance criteria: • Reset link expires in 15 minutes • Password rules are shown while typing • A success message appears after reset

A BRD states what the business needs and why. An FRD details how the system should behave to meet those needs (functional specifications).

Stakeholders and the sponsor review the Business Requirements Document for completeness and accuracy, and the business owner gives formal sign-off before design begins.

Reconcile totals with source tables using SQL, check filters and joins for duplication, compare with prior periods and verify with business owners.

Check market size (population, online ordering share), competition, restaurant supply, unit economics per order, CAC and payback period. Propose a pilot with clear success metrics.

Variance = Actual - Budget, shown as amount and percentage, with conditional formatting to flag large gaps and comments on the drivers.

Strengths and Weaknesses are internal; Opportunities and Threats are external. Example: S = strong faculty, W = low brand awareness, O = AI upskilling demand, T = free online content.

Every KPI is a metric, but a KPI is tied directly to a strategic goal (e.g. monthly churn). A metric can be any measurement (e.g. page views).

Functional requirements describe what the system does (login, reports); non-functional ones describe how well it does it (speed, security, availability, usability).

Clarify the goal behind each request, map them to business objectives, prioritise with MoSCoW, run a joint session, then document the decision and get sign-off.

A table assigning Responsible, Accountable, Consulted and Informed roles per task so ownership is clear.

CAGR = (End value / Start value)^(1/years) - 1, entered as =(B2/A2)^(1/n)-1.

A query nested inside another, used for filtering or calculating values such as customers whose spend is above the average.

Review > Protect Sheet or Workbook with a password, lock cells, hide formulas and allow only selected cells to be edited.

Low-fidelity layouts of screens that help stakeholders visualise and agree on requirements before development starts.

Structure it: households × car-owning share ÷ replacement cycle + first-time buyers + commercial fleet. State each assumption clearly and sanity-check the final number.

Identifying everyone affected by the project and mapping their influence and interest to decide how to communicate with and involve each group.

About 20 million people, roughly 10% order pizza on a weekend, about 1 pizza per 2 people in an order. This gives roughly 1 million pizzas, adjusted for outlets and delivery capacity.

A named temporary result introduced with WITH that makes long queries readable and reusable in the same statement.

The sales volume where total revenue equals total cost. It equals fixed cost divided by contribution margin per unit.

A framework listing internal Strengths and Weaknesses and external Opportunities and Threats to assess a project or business position.

A column or set of columns that uniquely identifies each row in a table and cannot contain NULL.

INNER returns only matching rows; LEFT returns all rows from the left table and NULLs where there is no match.

Use STAR: Situation, Task, Action, Result. Show that you listened, found the underlying goal, used data to align people and reached a documented decision.

Use tables, Power Query, remove volatile functions, filter before calculating and move to Power Pivot or a database when rows reach the millions.

Structure it: households × car-owning share ÷ replacement cycle + first-time buyers + commercial fleet. State each assumption clearly and sanity-check the final number.

Aggregate revenue per month and use LAG(revenue) OVER (ORDER BY month) to compute (revenue - previous) / previous.

A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.

Use FORECAST.ETS or a trendline on monthly history, check seasonality, compare with a simple moving average and present a range, not a single number.

Finding the underlying reason for a problem using the 5 Whys, fishbone diagrams or Pareto analysis, then fixing the cause not the symptom.

Combine cost-plus, competitor benchmarks and willingness to pay from research, test tiers with experiments and check margin and churn impact.

Clarify the scope, break the problem into logical parts, state assumptions with round numbers, compute step by step and sanity-check the answer.

Both look up values flexibly; XLOOKUP is simpler with built-in not-found handling, while INDEX-MATCH works in older Excel versions.

Stakeholders and the sponsor review the Business Requirements Document for completeness and accuracy, and the business owner gives formal sign-off before design begins.

WITH m AS (SELECT month, SUM(amount) AS rev FROM orders GROUP BY month) SELECT month, rev, ROUND(100.0 * (rev - LAG(rev) OVER (ORDER BY month)) / LAG(rev) OVER (ORDER BY month), 1) AS mom_pct FROM m;

An Excel add-in for building data models with relationships and DAX measures over millions of rows, beyond normal worksheet limits.

Strengths and Weaknesses are internal; Opportunities and Threats are external. Example: S = strong faculty, W = low brand awareness, O = AI upskilling demand, T = free online content.

A chart shows one view of data; a dashboard combines several charts and KPIs on one page for monitoring.

ROI = (incremental profit - campaign cost) / campaign cost. Measure incremental sales using a control group or before-after comparison.

Fixed costs stay constant regardless of volume, such as rent; variable costs change with volume, such as raw materials.

A UML diagram showing actors and the actions (use cases) they perform with the system, giving a quick view of scope.

Every KPI is a metric, but a KPI is tied directly to a strategic goal (e.g. monthly churn). A metric can be any measurement (e.g. page views).

Top-down: two-wheeler market x EV share x addressable segment. Bottom-up: target households x adoption rate x price. Compare both for a sanity check.

Number of outlets x daily customers x average bill x operating days, then validate using footfall, peak hours and similar chains.

Break-even units = Fixed costs ÷ (Price − Variable cost per unit). Add a data table to test different price and volume scenarios.

Check data accuracy, then segment by city, restaurant, time and user type; look at supply, delivery time, pricing, competitors and seasonality before proposing fixes.

SUM(sales) per category divided by SUM(SUM(sales)) OVER () and multiplied by 100 gives each category's share of the total.

GROUP BY aggregates rows by column; WHERE filters before grouping and HAVING filters after, using aggregate conditions.

ROI = (incremental profit - campaign cost) / campaign cost. Measure incremental sales using a control group or before-after comparison.

Excel suits small to medium data and quick ad-hoc work; SQL queries large databases directly and repeatably.

Define churn, analyse who leaves and why, segment customers, find drivers through data and surveys, design retention offers and measure uplift with a control group.

A framework listing internal Strengths and Weaknesses and external Opportunities and Threats to assess a project or business position.

Variance = Actual - Budget, shown as amount and percentage, with conditional formatting to flag large gaps and comments on the drivers.

A BRD states what the business needs and why. An FRD details how the system should behave to meet those needs (functional specifications).

Define a goal metric, a baseline and guardrail metrics, run an experiment or before-after comparison and review adoption, retention and revenue impact.

A diagram of steps, decisions and owners in a process, made using BPMN or flowcharts in tools like Visio, Lucidchart or draw.io.

Fixed costs stay constant regardless of volume, such as rent; variable costs change with volume, such as raw materials.

Product, Price, Place and Promotion, the levers a business uses to bring an offering to market.

A model classifying features as basic, performance or delight attributes based on how they affect customer satisfaction, helping decide what to build first.

A what-if tool that recalculates a formula for different inputs, for example loan payments across different rates and tenures.

GROUP BY aggregates rows by column; WHERE filters before grouping and HAVING filters after, using aggregate conditions.

It breaks a top metric into drivers: Revenue = Users × Conversion × AOV; Users = New + Returning, and so on. It shows which lever to pull and where a drop came from.

Assess market size and demand, customer need, competition, unit economics, capabilities, risks and strategic fit, then test with a pilot before scale-up.

Agile delivers value in small increments with feedback. Scrum organises work in sprints with planning, daily stand-ups, review and retrospective, led by a Scrum Master and Product Owner.

Structure it: households × car-owning share ÷ replacement cycle + first-time buyers + commercial fleet. State each assumption clearly and sanity-check the final number.

As a customer, I want to reset my password by email so that I can get back into my account. Acceptance criteria: • Reset link expires in 15 minutes • Password rules are shown while typing • A success message appears after reset

Get distinct user-month pairs, self-join or use LAG on month per user, and keep rows where the previous month is exactly one month earlier.