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Price & Margin Simulator

See what a price change, discount or drop in volume does to contribution and operating profit — compared side by side.

Baseline (per period)

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$

Materials, packaging, payment fees, commissions — anything that rises with each unit.

$
Enter a selling price and units sold to see results.

Revenue

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Contribution / unit

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Contribution margin

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Operating profit

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Break-even volume

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units sold

Compare scenarios

Volume is not assumed to stay the same. Enter an expected volume change, or tick "assume volume unchanged".

Assumption: variable cost per unit and fixed costs stay unchanged when the price changes. Costs linked to price — such as percentage commissions, card or marketplace fees — would also change; adjust variable cost per unit to reflect them.

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Formulas & assumptions
  • Revenue = Price × Units
  • Contribution per unit = Price − Variable cost per unit
  • Contribution margin % = Contribution per unit ÷ Price
  • Operating profit = Contribution per unit × Units − Fixed costs
  • Break-even volume = Fixed costs ÷ Contribution per unit (rounded up)
  • Units to keep profit = (Baseline profit + Fixed costs) ÷ New contribution per unit
  • Assumes variable cost per unit and fixed costs stay the same in each scenario. Volume changes are your estimate, not a prediction.

What to check next

  • Verify the real variable cost per unit, including refunds, commissions and payment fees.
  • Check past price changes or promotions for evidence of how volume actually reacted.
  • Test the scenario on a subset of products or customers before applying it everywhere.
Break-even calculator Margin of safety Margin vs markup

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Results are estimates based only on the values entered and are not a substitute for reviewing your business's actual records or professional advice. Example data is illustrative. Nothing you enter is stored or sent anywhere.