How to calculate a discount
Convert the percentage discount to a decimal, subtract it from 1, then multiply the original price by the remaining fraction.
Example: 20% off 500500 × 0.80 = 400, so the sale price is 400 and the amount saved is 100.
Discount Calculator
Enter the original price and percentage off to see the sale price and exactly how much you save.
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What is the sale price whenis% off?
Sale price = original price × (1 − discount ÷ 100).
Sale price—
You save—
You pay—
Multiplier—
Original price—
Percent off and amount saved
A 20% discount means you pay 80% of the original price. The saved amount is the original price multiplied by the discount percentage.
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Common questions
How do I calculate 25% off?
Multiply the original price by 0.75, or calculate 25% of the price and subtract that amount.
Is 20% off the same as paying 80%?
Yes. The discount and the remaining percentage add up to 100%.
Can a discount be more than 100%?
For an ordinary sale price, no. This calculator treats discounts outside 0% to 100% as invalid.