How to Calculate Discount
A discount calculation determines how much you save and the final sale price when a percentage is taken off. It is useful for shopping, business pricing, and promotions.
The Formula
Sale Price = Original Price x (1 - Discount Rate / 100)Where:
Sale PriceSale Price — Final price after discount appliedOriginalOriginal Price — Full price before any discountRateDiscount Rate — Percentage reduction from original priceStep-by-Step Example
Here's how to calculate discount step by step:
- 1Convert discount to decimal: Divide the discount percentage by 100.
- 2Calculate savings: Multiply the original price by the discount decimal.
- 3Subtract from original: Subtract the savings from the original price to get the sale price.
Following these 3 steps gives you the final discount value.
Skip the Math
A $80 jacket at 25% off: savings = $80 x 0.25 = $20, so the sale price is $60.
Use the Free CalculatorWhy You Need This Calculation
- Quickly calculating discounts helps you compare deals and make smarter purchasing decisions.
Common Mistakes
Stacking discounts incorrectly.
Apply sequential discounts multiplicatively, not by adding percentages.
Forgetting sales tax applies after discount.
Calculate tax on the discounted price, not the original.
Confusing percentage off with percentage of.
30% off means you pay 70% of the original price.