# Percentage Calculator, Formulae, Examples, & Definition

A percentage calculator is a free online tool that helps you calculate percentages.

What is

of

What is the percentage of

out of

is what percent of

of what is

is

of what?

What percentage of

is

of what is

Calculate Percentage → | Change | ||

Increase | Decrease | Difference | |

Convert → | Percent To Fraction | Percent To Decimal | Percent To PPM |

Fraction To Percent | Decimal To Percent | PPM To Percent |

## How To Calculate Percentage Of A Number?

To calculate the percentage of a number,** divide the part by the whole,** and then** multiply it by 100%**.

The formula to calculate percentage of a number is
**
$P=(X/Y)\times 100\%$
**,
where

X is the part of the whole, and

Y is the whole value.

The excel and google sheets formula to calculate percentage of a number is =(A1 / B1) × 100

Where the value of X (part of the whole) is in cell A1, and

Value of Y (whole value) is in cell B1

**Example 1: 30 of 200 is what percent?**

Using the formula,
$P=(X/Y)\times 100\%$
, we have:

X = 30

Y = 200

We get
$P=(\mathrm{30}/\mathrm{200})\times 100\%$

P = 15%

**Example 2: 40 of 60 is what percent?**

Using the formula,
$P=(X/Y)\times 100\%$
, we have:

X = 40

Y = 60

We get
$P=(\mathrm{40}/\mathrm{60})\times 100\%$

P = 66.666%

## What Is The Percentage Definition?

Percentage is the **number or ratio** represented as a** fraction of 100** or a** part of a hundredth**. It’s a** unit of proportion** which is an instance of** parts per notation** and is a** dimensionless quantity** with no standard unit of measurement.

The term percentage is derived from the Latin word “ **per centum**” which means** “by a hundred”.** The subdivision of percentage is** per mille. **The relation between percent and per mille is:

**1 percentage (1%) = 10 per mille (10‰)**

The value of percentage ranges from 0 to 100 when measured as a part of the whole but can hold any real number value when measuring relative change.

### What Is The Percentage Sign?

The percent sign is $\%$.

To access the percent sign on the keyboard, press ** Shift + 5 on windows** and

**.**

`Cmd`+`5`on macIn programming languages, $\%$ sign is used as a modulus operator.

### What Are The 3 Abbreviations Of Percentage?

The 3 abbreviations of percentage are** pct.**,** pct**, and** pc**.

#### What Are Percentage Points?

Percentage point is a unit for measuring the arithmetic difference between two percentage values.

For example, if a quantity increases from 20% to 25%, it has increased by 5 percentage points.

Percentage points have 3 abbreviations including **pp**, **p.p.**, or **%pt**.

#### What Is A Percentile?

A percentile is a **statistical measure** that indicates the value below which a given percentage of observations in a group of observations falls.

For example, the 20th percentile is the value below which 20% of the observations may be found.

Percentiles are commonly used to report scores in standardized tests, to assess relative standing within a population, and to analyze data distribution in various fields such as economics, education, and healthcare.