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Percentage Calculator

PopularCalculators

Calculate percentages, percentage of a number, and percentage change instantly.

What is X% of Y?

% of

= 0

X is what percent of Y?

is % of

= 0%

Percentage change

= 0%

Quick reference

  • Percentage of a number: (X ÷ 100) × Y
  • What percent: (X ÷ Y) × 100
  • Percentage change: ((New − Old) ÷ Old) × 100

What you can do with this tool

  • Find what percentage one number is of another
  • Calculate a percentage increase or decrease
  • Find a number given a percentage

Frequently asked questions

How is percentage change calculated?
Percentage change = ((new value − old value) ÷ old value) × 100.

What would you like to do next?