Product Profit Calculator

Product Profit Calculator: practical plan

Simplified unit economics

Revenue per unit: $48
Known variable costs: $15 + $3 + $7 + $6 + $5 = $36
Contribution before missing costs: $12 per unit, or 25% of revenue.

Costs still to include

Discounts, payment fees if separate, returns and refunds, damaged units, packaging, prep, storage, taxes where applicable, customer support, software, samples, tooling and overhead allocation. Confirm whether freight is landed per sellable unit and marketplace fees use the same sale price.

Scenarios

Test sale price ±10%, ad cost +$2, return rate increase and supplier cost changes. Calculate break-even ad cost as revenue minus all non-ad variable costs minus the required contribution floor.

Decision use

Do not scale based on this partial margin. Reconcile actual fees and costs from a recent period, then compare contribution per order and per visitor. Include cash timing and inventory exposure.

Input checks

Use consistent currency, tax basis, order size and date. Label assumptions and show formulas so another operator can reproduce the result. Update the model when fees or shipping terms change.

Measurement and review

Record the baseline, source, date range, denominator and owner. Use one primary measure plus quality guardrails; compare like-for-like cohorts and disclose missing data. Treat estimates as scenarios, not observed outcomes.

Risks and controls

Check relevance, consent, disclosure, workload and downside before scaling. Keep an evidence trail, obtain human review for material commitments, and pause if trust, quality or compliance signals deteriorate.

Next steps

1. Confirm the goal, audience and available capacity.
2. Gather the minimum evidence for a first test.
3. Assign an owner, budget and review date.
4. Run a small pilot, record outcomes and decide whether to iterate, expand or stop.