Free online tool
Percentage calculator
Three quick percentage sums: a percent of a number, what percent one number is of another, and percentage change.
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What is% of?
Answer–
is what % of?
Answer–
Fromto
Change–
Questions
Good to know
How do I work out a percentage of a number?
Multiply the number by the percent and divide by 100. 20% of 150 is 150 × 20 ÷ 100 = 30.
How is percentage change worked out?
(new − old) ÷ old × 100. From 80 to 100 is a 25% increase.
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