Unit economics worksheet
Compare contribution per sale, customer acquisition cost and a simple repeat-purchase scenario.
Your scenario
Preparing the calculator…
Your result
- Contribution per sale (₹)
- 400
- Contribution margin (%)
- 40
- Scenario contribution per customer (₹)
- 1,600
- Scenario contribution / acquisition cost
- 2
- After acquisition cost (₹)
- 800
Formula and assumptions
Contribution = revenue − variable cost. Scenario customer contribution = contribution × expected purchases. Ratio = scenario contribution ÷ acquisition cost.
Expected purchases are an assumption, not measured lifetime value. Excludes fixed costs, discounting and churn timing.
A little guidance.
How to use unit economics worksheet
- Enter your own numbers or choose Try an example.
- Review the settings and the stated limitations.
- Results update immediately. Check the formula, then choose Download or Copy.
Formats and compatibility
Numbers are calculated locally. Dates use the stated counting convention. Results download as plain text with assumptions. See browser compatibility.
Limitations
Expected purchases are an assumption, not measured lifetime value. Excludes fixed costs, discounting and churn timing.
Worked example
₹1,000 revenue minus ₹600 cost gives ₹400 contribution. Four purchases contribute ₹1,600 before acquisition and fixed costs.
Formula
Contribution = revenue − variable cost. Scenario customer contribution = contribution × expected purchases. Ratio = scenario contribution ÷ acquisition cost.
Questions, answered.
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The workspace displays a specific error. Try a smaller synthetic example or a supported format. Keep your originals and review exported files before relying on them.
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