Quick guide
How to use the Percent Off Calculator
- Enter or choose original price, discount (%).
- Select Calculate discount.
- Review the main result, supporting details, and calculation method.
- Copy the result or download generated files when that option is available.
What this tool does
Calculate the discount amount and final sale price from an original price and a percentage reduction. The tool keeps the savings and amount due separate so the result is easy to verify.
Calculation method
- Convert the entered percentage to a decimal by dividing by 100.
- Multiply the original price by that decimal to find the discount amount.
- Subtract the discount from the original price to find the sale price.
Example: 25% off $120
Input: Original price: $120; Discount: 25%
Result: Discount: $30; Sale price: $90
Twenty-five percent of 120 is 0.25 × 120 = 30. Subtracting 30 from 120 leaves 90.
Practical uses
- Retail sales
- Coupon comparisons
- Budget planning
- Markdown verification
Accuracy tips and common mistakes
- Sales tax is usually applied after the discount and is not included here.
- For stacked discounts, apply each discount sequentially rather than adding percentages.
- Check whether a coupon excludes particular items or has a maximum saving.