Calculate sale price after percentage discount, find the original price, or determine what % off you're getting. Includes bulk and stacked discount scenarios.
Calculate Discount
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Final Price
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You Save
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Original Price
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Discount Amount
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Sale Price
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Final (with tax)
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FAQ
How do you calculate percent off?
Final Price = Original Price × (1 − Discount%/100). For 20% off $100: $100 × 0.80 = $80. You save $20.
What is a stacked discount?
Two sequential discounts applied one after another. 20% off then 10% off ≠ 30% off. On $200: $200×0.80 = $160, then $160×0.90 = $144 (28% total, not 30%).
How to find original price from sale price?
Original Price = Sale Price / (1 − Discount%/100). If the sale price is $80 after 20% off: $80 / 0.80 = $100 original price.
Does sales tax apply before or after discount?
Sales tax is applied to the discounted sale price, not the original price. So: Original $100 → 20% off = $80 → 10% tax = $88 final price