Price Increase Calculator
Work out the percentage increase between two prices, and the new price you need when your costs go up, to keep the same margin or the same profit per unit. Free, no signup, nothing leaves your browser.
Full guide: Margin vs markup, and why it matters for price increases →
Supplier prices change more often than your price list?
A free Make scenario can recheck your list against new supplier costs every week and email you the products that slip below your margin.
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Percentage increase formula
Price increase % = (new price − old price) ÷ old price × 100. S$40 to S$44 is a 10% increase.
How much to raise prices when costs go up
To keep the same margin %, divide the new cost by (1 − your current margin). To keep the same profit per unit, add the cost increase to the old price. The first protects your margin; the second only protects the dollars.
Worked example: a product costs S$28 and sells for S$40, a 30% margin. The supplier raises the cost to S$31. Keeping a 30% margin means charging 31 ÷ 0.70 = S$44.29, a 10.7% increase. Leaving the price at S$40 cuts the margin to 22.5%. Passing on only the S$3 (S$43) keeps the profit per unit but lowers the margin to 27.9%.
Raising prices without losing customers
- Tell trade customers in writing with a date, ideally 30 days ahead.
- Explain the reason in one line; most customers accept a cost-driven increase.
- Round to clean price points.
- Review the whole list, not just the items whose costs you noticed.
The free price list tool reprices every product to a target margin and never lowers a price that is already fine.
Questions
How do I calculate a price increase percentage? Subtract the old price from the new price, divide by the old price and multiply by 100.
How much should I raise prices when costs increase? To keep the same margin, divide the new cost by one minus your margin. A S$31 cost at a 30% margin needs a S$44.29 price.
Is a 10% increase on price the same as a 10% margin? No. Margin is profit divided by price; a price increase is the change in price. Use the margin vs markup guide to avoid mixing them.
More free calculators: break-even, gross profit, price increase, DSO, GST, invoice due date and all free tools.
