Business calculator
Contribution Margin Calculator
See how much each sale contributes towards fixed costs and profit.
£
£
Result
£25.00
Contribution margin %41.7%
Variable cost£35.00
Use this result as a planning estimate and check that your inputs reflect the real costs and conditions of your business.
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How to use this contribution margin calculator
See how much each sale contributes towards fixed costs and profit. Enter realistic figures from your own business and test different scenarios before making a pricing or planning decision.
Why this matters
Small changes to price, cost, volume or percentage assumptions can have a large effect on profitability. A simple model makes those trade-offs visible before you commit.
Good practice
- Use current, realistic inputs rather than best-case estimates.
- Keep gross profit separate from net profit and cash flow.
- Re-run the calculation when your costs or commercial terms materially change.