Percentage Calculator

Calculate a percentage of a number using a simple, local formula.

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About Percentage Calculator

Percentage Calculator calculates percentage of a value, percentage increase or decrease between numbers, and percentage share ratios.

How to use Percentage Calculator

  1. Select calculation mode: X% of Y, X is what % of Y, or % change from X to Y.
  2. Enter input numbers.
  3. Click Calculate to compute percentage results.
  4. Review detailed step breakdown.

Examples

Calculation: 15% of £250.00 Result: £37.50 (Remaining: £212.50)

FAQ

What is the formula for percentage increase?

Percentage Increase = ((New Value - Original Value) / Original Value) * 100.

How do I calculate what percentage one number is of another?

Percentage Share = (Part / Total) * 100.

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