百分比计算器

即时计算百分比、占比和百分比变化。

Y 的 X% 是多少？

计算 % × ?

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是以下数值的百分之几： ?

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从到

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幅度 %

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Work out a tip or discount, see what share one number is of another, compare prices before and after, or add tax. Results update as you type.

How do I work out a percentage of a number?

Multiply the number by the percentage and divide by 100. For example, 15% of 80 is 80 × 15 ÷ 100 = 12.

How is percentage change calculated?

Subtract the old value from the new value, divide by the old value and multiply by 100. From 50 to 65 is (65 − 50) ÷ 50 × 100 = 30% increase.