Discount Calculator
Work out the sale price, how much you save, and stacked discounts.
You pay
About the Discount Calculator
Enter the original price and the discount to see exactly what you pay and what you save. A second discount field handles stacked offers such as 20% off plus another 10% at the till — which is never the same as 30% off, and the breakdown shows why.
There is also a tax field for the VAT or sales tax added after the discount.
Frequently asked questions
Is 20% off plus 10% off the same as 30% off?
No. On a 1,000 item, stacking gives 720 while a straight 30% gives 700 — the second discount applies to the already-reduced price.
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