Discount Percentage Calculator
Enter the original and sale prices to see the discount percentage and the amount you save.
25%
offYou pay
75%
You save
25%
- 1
Amount saved
80 − 60 = 20 - 2
Discount percentage
20 ÷ 80 × 100 = 25
Formula
How this is calculated
The calculator takes two figures in the same currency: the original (list) price before any reduction, and the sale price you actually pay. Both should be the pre-discount and post-discount prices for the identical item, excluding shipping, taxes or other fees, which are not part of the percent-off figure.
It first finds the amount saved by subtracting the sale price from the original price. To express that saving as a discount percentage, it divides the saving by the original price and multiplies by 100, so the discount is always measured relative to what the item cost before the markdown — not relative to the sale price. The amount you pay is simply the sale price you entered.
The original price must be greater than zero, since dividing by zero is undefined; a sale price above the original yields a negative discount (effectively a price increase). The result is rounded to two decimal places for display. The model assumes a single straightforward markdown and does not account for stacked coupons, loyalty points, tax, or per-item differences in bundle deals.
Examples
| Input | Result |
|---|---|
| Original $80, sale $60 | Discount = 25%, you save $20 |
About this calculator
A discount percentage tells you what fraction of the original price has been knocked off in a sale. It is calculated by dividing the price reduction by the original price and multiplying by 100. This makes it easy to compare deals of different sizes, since a larger dollar saving is not always a bigger percentage discount.
Use this calculator to verify advertised "percent off" claims, compare promotions across stores, or work out the true savings on bundled deals. A higher percentage means a deeper discount relative to the original price.
Frequently asked questions
Subtract the sale price from the original price, divide by the original price, then multiply by 100. For $80 down to $60 that is (80 − 60) ÷ 80 × 100 = 25%.
Multiply the original price by (1 − percent/100). For 25% off $80, the sale price is 80 × 0.75 = $60.
Not necessarily. A larger saving on an expensive item may be a smaller percentage discount than a modest saving on a cheaper item. Comparing percentages levels the playing field.
Also known as
TG we-Calculate Editorial Team. (2026). Discount Percentage Calculator [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/discount-percentage-calculator
TG we-Calculate Editorial Team. "Discount Percentage Calculator." TG we-Calculate. 2026. https://we-calculate.com/calculator/discount-percentage-calculator.
TG we-Calculate Editorial Team, "Discount Percentage Calculator," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/discount-percentage-calculator
@misc{wecalculate_discount_percentage_calculator, title = {Discount Percentage Calculator}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/discount-percentage-calculator}}, year = {2026}, note = {TG we-Calculate} }
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