This calculator turns a percentage discount into the amount you actually pay: the discount amount, the reduced price, and the total saved. Add a second stacked discount or a sales tax rate to see the full price breakdown.
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Applied to the already-reduced price, not added to the first percentage.
Calculated on the price after all discounts.
Final price
Enter a price and a discount The sale price and total savings appear here as you type.
Discount = Original price × D ÷ 100
The discount amount is the part of the original price represented by the percentage. A 20% discount on 199.99 removes 39.998 before rounding.
Sale price = Original price − Discount
Subtract the discount amount from the original price. This is the price before any tax is added.
Price = Original × (1 − D1 ÷ 100) × (1 − D2 ÷ 100)
The second discount applies to the already-reduced price, so the percentages multiply rather than add. 25% then 10% off is a 32.5% total reduction, not 35%.
Final = Sale price × (1 + T ÷ 100)
Tax is applied to the discounted price, not to the original price. The tax amount is what you pay on top of the sale price.
A jacket costs 199.99 and is discounted by 20%.
The sale price is 159.99 and you save 40.00. The calculator keeps 39.998 internally and rounds only for display.
An 80.00 item has a 25% sale discount and a further 10% coupon.
You pay 54.00 and save 26.00 in total. The effective discount is 32.5%, not the 35% you would get by adding the two percentages.
Each percentage after the first applies to a smaller base. Adding the numbers gives the wrong answer: 25% then 10% is 32.5%, while 25% + 10% would suggest 35%.
Amounts are kept exact internally and rounded only when displayed. For a 199.99 item at 20% off, the exact discount is 39.998; the display shows 40.00, but later calculations still use the exact value.
A 100% discount reduces the price to zero. If a tax rate is entered, tax on zero is zero, so the final price stays zero.
Sales tax is applied after every discount. Entering tax does not change the discount amount or the total saved; it only adds the tax line to the final price.
Multiply the original price by the discount percentage and divide by 100. For 20% off 199.99, the discount is 199.99 × 20 ÷ 100 = 39.998, which displays as 40.00.
The second discount is calculated on the reduced price, which is smaller than the original. The combined factor is 0.75 × 0.90 = 0.675, so the total reduction is 32.5%.
After. The calculator applies sales tax to the price that remains after every discount, which is the usual order for retail pricing.
No. It only changes the symbol and the number of decimal places shown. No exchange rate is applied, and the numbers stay exactly as entered.
The sale price becomes zero. Any tax rate applies to zero, so the final price is also zero. The total saved equals the original price.
Rounding each intermediate amount can shift a total by one cent. This calculator keeps full precision until the final display, then rounds to the currency’s smallest unit. Rounding every step separately may produce a slightly different last digit.