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Two ways to use it: enter an original price and a discount percentage to see the final price and how much you save — or enter the original and the price you actually paid to reveal the real discount rate you got.
Instantly settle "is 30% off $89 actually a good deal?", stack mental math-free shopping decisions, and verify that the checkout price matches the advertised discount. Works in any currency — just type the numbers.
Multiply the price by the percentage and divide by 100 — that is the savings; subtract it from the price. This tool does it instantly and without arithmetic slips, which matter more at 60%-off clearance events.
Switch to reverse mode: enter the original price and what you paid. The tool computes (original − paid) ÷ original × 100 — handy for checking whether a "sale" is real.
Stacked discounts multiply, they do not add: 20% then 10% off equals 28% total, not 30%. Run the first discount, use the result as the new price, then apply the second.
PureKit · discount-calculator · Free online tool — files processed locally in your browser, no upload.