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Number & Math

Discount Calculator

Enter an original price and a discount percentage to get the amount saved and the final price. Useful at the till when a sign says '30% off' and you want the actual figure, and for checking that a stacked promotion works out the way the advertising implies.

Free, no signupRuns entirely in your browser
Input
Result
Final Sale Price
$86.40
Total Savings
$20.00
Tax Amount
$6.40
Pre-Tax Discounted Price
$80.00
About

What the Discount Calculator does

Stacked discounts are where intuition fails. '20% off, then a further 10% off' is not 30% off — the second discount applies to the already-reduced price, so the true total is 28%.

How it works

Using the Discount Calculator

  1. 1Enter the original price before any reduction.
  2. 2Enter the discount percentage.
  3. 3The discount amount is calculated as price × percentage ÷ 100.
  4. 4That amount is subtracted from the original to give the final price.
  5. 5Both the saving and the price you pay are shown.
Use cases

What people use it for

  • Checking a sale price while shopping
  • Pricing a promotion and seeing the margin given up
  • Verifying an invoice discount was applied correctly
  • Comparing two offers expressed differently
FAQ

Frequently asked questions

6 related

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