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Discount Calculator

Promotions often say “20% off plus an extra 10%”. This tool handles single and successive discounts and shows what you really save.

How to use

  1. Enter the original price and the discount.
  2. For stacked promotions use the second tab.
  3. Final price and savings appear instantly.

Frequently asked questions

How is the sale price calculated?

Price × (1 − discount ÷ 100). A 25% discount on 1,500 is 1,500 × 0.75 = 1,125.

Is 20% plus 10% the same as 30%?

No. The second discount applies to the already reduced price: 1 − 0.80 × 0.90 = 28%.

How do I find the discount percentage?

(old − new) ÷ old × 100. The Percentage Calculator’s change tab does this for you.

Is the discount applied before or after VAT?

Usually on the VAT-inclusive tag price. To separate VAT, use the VAT Calculator.

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