Percentage Calculator – Find Percentage, Percentage of a Number and Change

Percentage calculator

Find a percentage of a number, what percentage one number is of another, or a percentage change.

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Calculated in your browser; nothing is stored.

Three common percentage calculations

  • X% of Y: multiply Y by X and divide by 100. For example, 20% of 450 is 90.
  • X is what % of Y: divide X by Y and multiply by 100. For example, 45 out of 60 is 75%.
  • Percentage change from X to Y: subtract X from Y, divide by X and multiply by 100. A positive answer is a rise and a negative answer is a fall.

For marks, use our marks to percentage calculator. For CGPA, use the CGPA to percentage calculator.