Work out a sale price in seconds. Enter the original price and discount, add a second discount if you are stacking offers, and optionally add tax to see the final price.
How to calculate a discount
Sale price = original price × (1 − discount). A 25% discount on $80 is $80 × 0.75 = $60, so the customer saves $20.
Stacked discounts are not added together
A 20% discount followed by an extra 10% is not 30% off. The second discount applies to the already-reduced price: $100 → $80 → $72, which is 28% off in total. The calculator shows the true total discount.
Discounts and your profit
Before running a sale, check that the sale price is still above your break-even point in our profit margin calculator or platform fee calculators – a 20% discount can wipe out far more than 20% of your profit.
Frequently asked questions
How do I work out the original price from a sale price?
Divide the sale price by (1 − discount). For example, $60 after 25% off came from $60 ÷ 0.75 = $80.
Should tax be added before or after the discount?
In most places tax is calculated on the discounted price, which is how this calculator works.