L2Original starter · Free

Market sizing and business arithmetic

Part of the Consulting learning and recruiting path. Read the explanation and example, attempt the task, then open the self-check.

Understand

Define geography, customer, period and unit before sizing. Build top-down or bottom-up estimates, show ranges and cross-check with another method. Keep people, transactions, units and money separate.

Worked example

Illustrative annual spend: 100,000 customers × 2 visits/month × 30 per visit × 12 = 72 million.

Examples and numbers are educational, not employer questions, live market data or hiring criteria.

Practise and keep your output

Estimate annual campus coffee sales with ranges and cross-check against shop capacity.

Keep inputs and sources, assumptions, steps, results and uncertainties in your own document. Attempt independently before checking below.

After attempting: answer and self-check

Separate assumptions from facts. Check duplicate customers, holidays and whether the result exceeds plausible capacity.

Official channels and further reading

Pathline authors these starter lessons. These supplementary field links do not imply provider review or endorsement. Confirm Hong Kong availability and eligibility separately.