Percentage Calculator

Calculate percentages, percentage changes, and convert between percentages and decimals.

Calculate what percentage of a number another number represents

How to Use

Select the calculation type you want to perform, enter the required values, and click Calculate.

Calculation Types

  • What is X% of Y? - Calculate what percentage of a number another number represents
  • Percentage Change - Calculate the percentage change from one value to another
  • Percent to Decimal - Convert a percentage to its decimal equivalent
  • Decimal to Percent - Convert a decimal to its percentage equivalent

Common Examples

  • 25% of 200 = 50
  • Change from 100 to 120 = 20% increase
  • 75% to decimal = 0.75
  • 0.25 to percent = 25%

Tips

  • Use "Load Example" to see sample calculations
  • For percentage change, enter the original value first
  • Decimals can be entered with or without leading zeros
  • Results are automatically rounded to 4 decimal places