Discount Calculator
Percent Off
Calculate the sale price after a percentage discount
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Find Discount %
Find the discount percentage from original and sale prices
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Double Discount
Calculate price after two successive discounts (e.g. 30% off + extra 15% off)
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Formula
Sale Price = Original x (1 - Discount%/100)
Frequently Asked Questions
How do I calculate a discount?
Sale Price = Original Price x (1 - Discount/100). For example, 30% off $80: $80 x 0.70 = $56.
Why is 30% + 15% off not 45% off?
Successive discounts multiply, not add. 30% off $100 = $70, then 15% off $70 = $59.50. The effective discount is 40.5%, not 45%. The second discount applies to the already-reduced price.
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