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Discount Calculator

Price after a % or fixed discount, including stacked discounts

Verified against sourcesLast verified 25 September 2026

Your numbers

THB
Discount type
%
%

e.g. 20% off, then another 10%

Result

Enter your numbers above. The result appears here instantly.

Tested examples

Every example below is an automated test. Click one to try it.

Formula

  • Price after discount = price × (1 − discount% ÷ 100)
  • Stacked: price × (1 − d1 ÷ 100) × (1 − d2 ÷ 100)
  • Saved = price − price after discount

Assumptions

  • We calculate exactly and round to the satang once at the end. Some shops round at each step or to whole baht.
  • The second discount applies to the price after the first.

Sources

  1. OpenStax (Rice University)

    Contemporary Mathematics, §6.2 Discounts, Markups, and Sales Tax

    accessed 25 September 2026

Internal reference: reference/02_discount.md

FAQ

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Results support decisions. For tax, legal, financial or construction matters, please check with a professional.