How to Calculate a Discount
A discount is a reduction from the original price, expressed as a percentage. Discount calculators are useful when shopping sales, negotiating prices, calculating wholesale pricing, or setting promotional prices for a business.
Discount Formulas
Discount Amount = Original Price × Discount % ÷ 100
Sale Price = Original Price − Discount Amount
Or: Sale Price = Original Price × (1 − Discount% ÷ 100)
Sale Price = Original Price − Discount Amount
Or: Sale Price = Original Price × (1 − Discount% ÷ 100)
Common Discount Examples
| Original Price | Discount | Saving | Sale Price |
|---|---|---|---|
| ₹1,000 | 10% | ₹100 | ₹900 |
| ₹5,000 | 25% | ₹1,250 | ₹3,750 |
| ₹10,000 | 30% | ₹3,000 | ₹7,000 |
| ₹50,000 | 15% | ₹7,500 | ₹42,500 |
Reverse Discount: Find Original Price
If the sale price is ₹800 and the discount is 20%, the original price is: ₹800 ÷ (1 − 0.20) = ₹800 ÷ 0.80 = ₹1,000.