Discount Calculator
Enter a price and discount percentage to see your final price and savings instantly.
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Frequently Asked Questions
How do I calculate a discount?
Multiply the original price by the discount percentage, then subtract from the original price. Formula: Final Price = Original Price × (1 − Discount% ÷ 100). Example: $100 item with 25% off → $100 × 0.75 = $75. The discount amount saved is $25.
How is a 20% discount calculated?
Multiply the original price by 0.20 to find the discount amount, then subtract it from the original price. Example: 20% off $80 → Discount = $80 × 0.20 = $16 → Final price = $80 − $16 = $64. You can also multiply by 0.80 directly: $80 × 0.80 = $64.
What is 30% off $50?
30% off $50 is $35. The discount amount is $15. Formula: $50 × (1 − 0.30) = $50 × 0.70 = $35. Enter 50 and 30 in the calculator above for instant results.
How do I calculate the original price from a sale price?
Divide the final (sale) price by (1 − discount% ÷ 100). Formula: Original Price = Sale Price ÷ (1 − Discount%/100). Example: $64 final price with 20% off → $64 ÷ 0.80 = $80 original price.
Do stacked discounts add together?
No — stacked discounts are applied sequentially, not added. A 20% discount followed by an additional 10% off is not the same as 30% off. Example: $100 → 20% off = $80 → 10% off $80 = $72. That is 28% total off, not 30%.
Does this discount calculator work for any currency?
Yes — enter any number as the price and the calculator works for dollars, euros, pounds, or any other currency. The math is the same regardless of currency symbol.