Calc4Living

Personal Finance & Budget · Free calculator

Discount Calculator

Calculate a discounted price and savings, including an optional second sequential percentage discount.

Your inputs

Prefilled values are editable examples. Enter your own amounts. All fields are required unless marked optional. Results clear whenever an input or name changes.

Labels only; no exchange rates or conversion. Use one currency for all amounts.

Enter your own amount in the selected currency.

From 0 to 100%.

Your calculation

Results

Review the assumptions, enter your values and calculate.

What is the final price after one or two discounts?

After first discount = original price × (1 − first percentage/100). Final unrounded price = after-first price × (1 − second percentage/100). Round the final price once to cents. Discount amount = original price − rounded final price. Effective percentage = [1 − (1 − first/100)(1 − second/100)] × 100.

Worked example

Starting at 100.00, a 20% discount leaves 80.00. An additional 10% applies to 80.00 and leaves 72.00: 28.00 saved, or 28%, rather than 30%.

Assumptions & limitations

  • Enter a nonnegative original price with at most two decimals and discounts from 0% to 100%. The final price is rounded once to the nearest cent, half upward; the intermediate displayed step is not used as a rounded input.
  • Percentage saved reflects the theoretical combined discount before cent rounding. For a zero original price, percentage saved is undefined, while the monetary saving and final price are zero.
  • Taxes, shipping, coupons, minimum spend and retailer-specific rounding policies are not modeled. Currency changes labels only.