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Discount Calculator

Find a sale price after a percentage or amount off, or the percentage off between two prices.

Change the values and press Calculate to work out your own figures.

Percent off

Enter the price and percent off.

About original priceBefore the discount.
About discount, %Percent off.
About currencyChanges how amounts are shown, not the math; your choice is remembered on this device.
Result
Sale price
$50.99
You save
$9.00
Percent off
15%

The sale price is $50.99.

Show the working
  1. sale = price × (1 − %)

Amount off

Enter the price and amount off.

About original priceBefore the discount.
About discountAmount off.
About currencyChanges how amounts are shown, not the math; your choice is remembered on this device.
Result
Sale price
$75.00
You save
$20.00
Percent off
21.05%

The sale price is $75.00.

Show the working
  1. sale = price − amount

Percent off from two prices

Enter the original and sale prices.

About original priceBefore the discount.
About sale priceAfter the discount.
About currencyChanges how amounts are shown, not the math; your choice is remembered on this device.
Result
Percent off
20%
Saved
$10.00

That's 20% off.

Show the working
  1. % off = (price − sale) ÷ price

How to use it

Enter the price and percent off. Enter the price and amount off. Enter the original and sale prices.

Enter amounts without commas or with them; rates are percentages (5 for 5%). Negative amounts are allowed where a sign means money paid out.

Key facts

sale price = price × (1 − %), or price − amount; % off = (price − sale) ÷ price

Questions

What is 15% off $59.99?

$50.99.

Formulas

sale price = price × (1 − %), or price − amount; % off = (price − sale) ÷ price

Sources

Limitations

  • Results are estimates for planning, not offers or financial advice; lenders and banks may round, count days or time payments differently.
  • Rates are nominal annual rates compounded as you choose; payments at a different frequency use the equivalent periodic rate.

Formula version 0.1.0Reviewed