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Discount
% off
£0.00
Final price
Total saved£0.00
Effective discount0%
Original price + % off → final price. Add multiple discounts to stack them sequentially.
About this calculator
A single discount reduces the price by Price × (Discount % ÷ 100).
Stacked discounts are applied sequentially to whatever the price has become after the previous discount, not all at once on the original price — so two 10% discounts save 19%, not 20%, because the second 10% is taken off an already-reduced price.
Frequently asked questions
Do two 10% discounts add up to 20% off?
No — they come to 19%. The second discount applies to the already-reduced price, so stacked discounts always save slightly less than adding the percentages together.
How do I work out the original price from a sale price?
Divide the sale price by 1 minus the discount as a decimal. An item reduced 25% to 60 was originally 60 divided by 0.75, which is 80.