Type your numbers and get the answer instantly: percentages of a value, percentage change between two numbers, discounts, markups and the original price before a change.
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If a rate goes from 10% to 12%, it rose by 2 percentage points but by 20% in relative terms. The change calculator gives the relative change.
You can type digits in any script and use a comma or a point for decimals: 1,234.5 and 1.234,5 are both understood.
Use “Decrease by a percentage”: type the price and the discount percent to get the new price and the amount saved.
Use “Value before a percentage change”: type the final price and the tax rate.
Because the base changes: 80 → 100 is +25%, but 100 → 80 is −20%.
Yes, all calculators accept negative values.
No, everything is calculated on this page.
Up to four, more for very small numbers.