# Percentage Calculator

Percentage calculator is an online tool that you can use to calculate percentages for free. Just fill your known numbers in the input group that satisfies your question the most, then click the "calculate" button to get the result.

##### 1) Find a percentage from a known value of a number

##### 2) Find a value of a number from a known percentage

##### 3) Find a percentage increase or decrease from two numbers

##### 4) Find a value increase or decrease from a number by a percentage

## About

The percentage calculator is design to help you quickly and easily calculate percentages for free on any devices that can connect to the internet. It can be used to solve a different types of percentages problems in your daily life. Like finding a discount of a product you want to buy or finding a value or a percentage of something that has increased or decreased.

## What is a percentage?

Percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign (%), although the abbreviations pct., pct, and sometimes pc are also used. For example, if 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. If there are 500 students, then 250 of them are male.

## How to calculate a percentage?

To calculate a percentage, you typically divide the part (the smaller value) by the whole (the larger value), and then multiply the result by 100. This gives you the percentage value as a number between 0 and 100. For example, if you have 40 cars and you want to know what percentage of them are green, and 20 of them are green, you would divide 20 by 40 to get 0.5, then multiply by 100 to get 50%.