Recover the original value before a percentage was applied.
See increases and decreases as percentages, with the raw difference.
Raise or lower a base number by any percentage.
Yes, it is completely free with no limits on how many calculations you run.
Yes. Use the add-subtract mode for tax and the percent-of mode for discounts. A $250 jacket at 30% off costs 250 x 0.7 = $175 before tax.
No. The tool runs in the browser, works on any device, and needs no sign-up or download.
It finds a new value after increasing or decreasing a base number by a percent. Add 20% to 100 to get 120, or subtract 20% to get 80.
Divide X by 100 and multiply by Y. For example, 15% of 80 is (15 / 100) x 80 = 12. Type the percent in the first field and the total in the second.
Split a tip or work out a percentage of a restaurant bill.
Measure change in revenue, traffic, or margins period over period.
Add or remove sales tax from a purchase price.
I use the percentage calculator whenever I need to double-check a discount or a price change before I commit. The reverse mode is the one I reach for most, because receipts never show the pre-tax number. It is fast and I have never caught it making an arithmetic slip.fails via fallback store wrong on cdn
Percentage difference explained with the formula, worked examples, and when to use it instead of percentage change. Includes a free percentage calculator.
Use this percentage increase calculator to raise a number by a percent or find the percent increase between two values. Formulas and worked examples inside.
Free online percentage calculator with five modes: percent of a number, what percent of Y is X, percentage change, add or subtract a percent, and reverse percentages. Formulas inside.