Percentage Calculator
Work out a percentage of a number, what percent one number is of another, the change between two numbers, a discount or sale price, and margin and markup, with the answer written out.
%
Enter both numbers to see the answer.
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How to use the Percentage Calculator
Choose what you want to work out, such as a percentage of a number or a discount.
Enter the two numbers.
Read the answer, which is written out in a sentence, and copy it if you like.
Questions about the Percentage Calculator
Multiply the number by the percentage and divide by 100. For example, 15% of 200 is 200 × 15 ÷ 100, which is 30. Choose the first mode in the calculator and it does this for you.
Subtract the old value from the new one, divide by the old value, and multiply by 100. Going from 50 to 75 is a 50% increase. Going back from 75 to 50 is a 33.33% decrease, because the change is measured against the starting value.
Markup is profit as a share of the cost, and margin is profit as a share of the selling price. Something that costs 60 and sells for 100 has a markup of 66.67% and a margin of 40%.