How to use the discount calculator
Enter the original price and the percent-off discount. The calculator subtracts the discount amount from the original price.
Discount formula
A 20% discount means you pay 80% of the original price before taxes, shipping, or other charges.
Example: Chloe checks a sale price
Chloe finds a $75 jacket marked 20% off. The discount is $75 × 0.20 = $15, so the sale price is $60 before tax or delivery charges.
Two consecutive 20% discounts would leave $48, because the second discount applies to $60. They are equivalent to 36% off the original price, not 40%.
Find both the saving and the amount you pay
An $80 item marked 75% off saves you $60, leaving a $20 sale price before tax. The discount is applied to the original price.
Two successive discounts are applied one after the other. For 20% off followed by 10% off, run the second discount on the reduced price; the combined discount is 28%.
Assumptions and limitations
What the estimate assumes
Sales tax, shipping, coupons with special rules, and stacked promotions are not included.
Discount Calculator FAQs
How do I calculate 25% off?
Multiply the original price by 0.25 to find the savings, then subtract that amount from the original price.
Does the calculator include sales tax?
No. Use the Sales Tax Calculator after finding the discounted price if you also want to estimate tax.
Can the discount be 100%?
Yes. A 100% discount produces a $0 sale price in this simple model.
What if two discounts are stacked?
Apply the first discount, then use the resulting price as the original price for the second discount. Two 20% discounts are not the same as one 40% discount.
Simple price calculation. Retailer promotion rules and taxes can change the actual checkout price.