Percentage Calculator
Calculate percentages three ways: X% of a number, what percent one number is of another, and percentage change. Instant and free.
What is X% of Y?
What is % of ? = -
X is what percent of Y?
is what % of ? = -
Percentage change from X to Y
From to = -
Three percentage calculations in one place
Percentages come up in discounts, grades, taxes and growth figures. This page covers the three questions people ask most.
How do I calculate a percentage of a number?+
Use the first box: enter the percent and the number, and the result appears immediately.
How is percentage change calculated?+
(new value - old value) / |old value| x 100. A negative result means a decrease.
Is it free?+
Yes. No signup, no limits, no watermarks.
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