Percentage Discount Calculator
This calculator works out the sale price and dollar saving when a percentage discount is applied to an original price, so you can check a shop's advertised discount or see what a stacked, multi-stage sale actually costs. You enter the original price, the discount percentage, and an optional currency symbol. If a second discount applies on top of the first, such as an extra 10 percent off an already-reduced item, you enter that too, and the calculator applies it correctly to the already-discounted price rather than simply adding the two percentages together. The results panel returns the original price, the final sale price, the dollar amount you save, and your effective combined discount rate, alongside a full breakdown showing the price after each discount stage, the saving contributed by each discount, the multiplier applied, and the final price you pay. A plain-English summary restates the outcome so you can see at a glance what a percentage-off deal is really worth in dollars. This is useful for shoppers checking whether stacked discounts genuinely add up to what is advertised, and for retailers pricing sale stock. The guide below also explains how to reverse the calculation to find an original price from a known sale price. All figures are exact arithmetic based on the numbers entered, so they do not account for GST or a retailer's own rounding rules.
1. Price and Discount
2. Optional Second Discount
A second discount is applied to the price already reduced by the first discount. Two sequential discounts are never simply added together.