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Calculate X% of Y, what percent one number is of another, percentage change, and increase or decrease by a percentage. Results update as you type.
Six everyday percentage calculations in one place
Fill in both numbers to see the result.
Fill in both numbers to see the result.
Fill in both numbers to see the result.
Fill in both numbers to see the result.
Fill in both numbers to see the result.
Fill in both numbers to see the result.
Six percentage calculators on one page: what is X% of Y, X is what percent of Y, percentage change from X to Y, increase X by Y%, decrease X by Y%, and X is Y% of what number. Every card updates as you type, accepts commas and decimals, and explains the result in a sentence. Useful for discounts, tips, VAT and tax, markups, grades, growth rates and any quick percentage maths. Calculated in your browser.
What you get with Percentage Calculator.
Percent of, what percent, percentage change, increase, decrease and reverse percentage.
Every result updates as you type and is explained in plain language.
Accepts commas, decimals, negative numbers and a trailing % sign.
Clear messages instead of wrong answers when a value would divide by zero.
Follow these steps to get the best results.
Use “Decrease X by Y%” with the price and the discount, for example 80 decreased by 25% is 60.
80, 25%60Use “Percentage change” to compare last month with this month.
from 50 to 75+50%Use “X is Y% of what number?” when you know a part and its percentage.
30 is 15% of …200Advertisement
Common questions about Percentage Calculator.
Multiply the number by the percentage and divide by 100. For example 15% of 200 is 200 × 15 ÷ 100 = 30. The first card does this for you.
Subtract the old value from the new value, divide by the old value, and multiply by 100. A positive result is an increase and a negative result is a decrease.
You cannot measure a percentage change from zero, so the tool shows a message instead of a number. The same applies to “what percent of 0”.
Percentage change divides by the absolute value of the starting number, so moving from −50 to −25 is reported as a 50% increase.
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