Discount Calculator
Find the sale price after any discount percentage, or calculate what discount was applied. Supports multiple currencies and stacked discounts.
Calculate Discount
Result
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Sale Price
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You Save
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Discount %
Formulas
Sale Price = Original × (1 − Discount% ÷ 100)
Savings = Original × Discount% ÷ 100
Discount% = (Original − Sale) ÷ Original × 100
Savings = Original × Discount% ÷ 100
Discount% = (Original − Sale) ÷ Original × 100
Frequently Asked Questions
How do I calculate a discount?
Multiply original price by (1 − discount rate). For 30% off $150: 150 × (1 − 0.30) = 150 × 0.70 = $105. Savings = $45. Mental shortcut: 10% off = divide by 10; 25% off = divide by 4; 50% off = divide by 2.
How do I find the discount percentage?
Discount% = (Original − Sale) ÷ Original × 100. Item marked $200, on sale for $140: (200 − 140) ÷ 200 × 100 = 60 ÷ 200 × 100 = 30% off.
How do I calculate price after multiple discounts?
Apply each discount to the running price, not the original. 20% off then 10% off a $100 item: after first discount = $80; after second = $80 × 0.9 = $72. Total savings = $28 (28%), not 30%. Discounts compound multiplicatively.