**Percentages** are a common way to express a proportion of a whole. Understanding** how to calculate percentage** is a valuable skill that can be used in various situations, from finance and economics to everyday life. In this blog post, we’ll provide a **step-by-step** guide on **how to calculate percentage**.

## Table of Contents

## How to Calculate Percentage Using Step-by-Step Guide

Calculating a percentage involves converting a portion or a fraction of a number to its equivalent value out of 100. Here’s a **step-by-step guide** on **how to calculate a percentage**:

**Step 1: **Write the fraction as a decimal To calculate a percentage, you need to first convert the fraction to a decimal. To do this, divide the numerator (top number) by the denominator (bottom number) of the fraction. For example, if you want to find the percentage of 3 out of 5, divide 3 by 5 to get 0.6.

**Step 2: **Multiply the decimal by 100 To convert the decimal to a percentage, multiply it by 100. In our example, 0.6 multiplied by 100 gives you 60%.

**Step 3:** Round off the answer (optional) If required, you can round off the answer to the nearest whole number, tenth, or hundredth.

For example: if you got 73.84% as your answer, you can round it off to 74%, 73.8%, or 73.84%, depending on the level of precision you need.

**Here’s an example of calculating a percentage:**

Question: What is 25% of 80?

**Step 1: **Convert the percentage to a decimal To convert 25% to a decimal, divide it by 100: 25 รท 100 = 0.25

**Step 2:** Multiply the decimal by the whole number To find 25% of 80, multiply 0.25 by 80: 0.25 x 80 = 20

**Step 3:** Round off the answer (optional) Since 20 is already a whole number, there’s no need to round it off.

Therefore, 25% of 80 is **20**.

That’s it! You have now learned **how to calculate a percentage using a step-by-step guide**.

## What Is percentage formula.

The **percent formula** is used to express a number as a fraction of 100. It is commonly used in a variety of applications, including finance, science, and statistics.

The **percent formula **can be expressed as:

Percent = (Part / Whole) x 100

where:

**Part**: the portion or fraction of the whole that is being considered.**Whole**: the total amount or quantity that the part represents.**Percent**: the fraction of the whole expressed as a percentage.

For example, if you want to calculate the percentage of students who scored above 80% in a test, and there were 250 students in the class, and 70 students scored above 80%, you can use the percent formula as follows:

**Percent = (70 / 250) x 100 = 28%**

Therefore, **28% of the students scored above** **80%** in the test.

## How to find percentage of two numbers.

To **find the percentage of two numbers**, you need to divide one number by the other, and then multiply the result by 100 to express it as a percentage. Here are the steps to follow:

- Divide the smaller number by the larger number.
- Multiply the result by 100.
- Round the result to the desired number of decimal places.

**For example, **let’s say you want to find the percentage of 25 out of 100:

- Divide 25 by 100: 25/100 = 0.25
- Multiply by 100: 0.25 * 100 = 25
- The percentage of 25 out of 100 is 25%.

**Another example: **let’s say you want to find the percentage of 75 out of 120:

- Divide 75 by 120: 75/120 = 0.625
- Multiply by 100: 0.625 * 100 = 62.5
- The percentage of 75 out of 120 is 62.5%.

## How to calculate percentage of marks.

To calculate the percentage of marks obtained by a student, follow these steps:

- Add up the total marks obtained by the student in all subjects.
- Divide the total marks obtained by the total number of subjects.
- Multiply the result by 100 to get the percentage.

For example, if a student scores 80 marks in English, 85 in Maths, and 70 in Science out of a total of 100 marks for each subject, the calculation for the overall percentage would be as follows:

Total marks obtained = 80 + 85 + 70 = 235 Total number of subjects = 3 Percentage = (235/300) x 100 = 78.33%

Therefore, the student’s overall percentage of **marks is 78.33%.**

## How to calculate percentage of money.

To **calculate the percentage of money,** you need to multiply the amount of money by the percentage expressed as a decimal. Here are the steps to follow:

- Convert the percentage to a decimal by dividing it by 100. For example, if the percentage is 25%, divide 25 by 100 to get 0.25.
- Multiply the amount of money by the decimal representation of the percentage. For example, if you want to calculate 25% of $200, multiply $200 by 0.25:

$200 x 0.25 = $50

So **25% of $200 is $50.**