# Percentage Calculator - Find Percentage Online

Do you need to find a percentage or calculate one? This free online percentage calculator will help you do just that!

## What Is Percentage in Simple Words?

A percentage is a proportion expressed as a fraction of 100. It is often denoted using the percent sign, "%", or sometimes as "pct." For example, 45% (read as "forty-five percent") is equal to 45/100, or 0.45.

## How Do We Use Percentages in Real Life?

Percentages are used every day in many ways. Here are some examples:

• An item that was originally priced at \$100 is now on sale for 20% off. The new price is \$100 × (1 - 0.20), or \$80.
• A bill comes to \$103.50 after tax. The sales tax rate is 6%. The amount of sales tax paid is \$103.50 × 0.06, or \$6.21.

## What Is the Formula for Percentage?

``Percentage = (Part / Whole) × 100 ``

For example, if you want to know what percent A is of B, you simply write:

``A% of B = (A / B) × 100 ``

## What Is the Percentage Calculator?

The Percentage Calculator is an online tool that lets you quickly and easily calculate percentages. You can also select from a list of operations like percentage of a number, and increase or decrease in percentage.

## How to Use the Percentage Calculator

To use the calculator, select the number A and the number B. Then select the percentage calculation operation. Finally, click on the "Calculate" button.