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Percentage Calculator

Calculate percentages instantly: X% of Y, X is what % of Y, and percentage increase/decrease between two values. Free online percentage calculator.

Frequently Asked Questions

What can this calculator do?
It handles three common percentage operations: finding X% of Y, determining what percentage X is of Y, and calculating the percentage change between two values.
How is percentage change calculated?
Percentage change = ((new value - old value) / |old value|) x 100. A positive result means an increase; negative means a decrease.

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How to Use

  1. 1 Choose the calculation type: X% of Y, X is what % of Y, or percentage change.
  2. 2 Enter the required values in the input fields.
  3. 3 View the calculated result instantly.