Percentage Calculator | Calculate Percentages, Increases, and Decreases

Free online percentage calculator. Calculate percentage of a number, percentage change, and reverse percentage easily.

Common Calculations
What is P% of X?

How to use

  • Select the type of percentage calculation you want to perform.
  • Enter the required numbers in the input fields.
  • The result will be calculated automatically.

About Percentages

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%"

Formula

P% of X = (P/100) * X

Features

  • Calculate percentage value
  • Calculate percentage change (increase/decrease)
  • Reverse percentage calculation

Applications

  • Financial calculations (interest, discounts)
  • Statistics and data analysis
  • Academic grading