Percentage addition is a mathematical process that involves adding a certain percentage to a given value. It is an essential concept in many fields, including finance, economics, and statistics. In this article, we will discuss the basics of percentage addition and how to perform it using different methods.

## What is Percentage Addition?

Percentage addition is the process of adding a certain percentage to a given value. For example, if the value of a product is $100, and the sales tax rate is 10%, the percentage addition would be adding 10% of $100, which is $10, to the original value, resulting in a total price of $110.

Percentage addition is often used to calculate discounts, markups, and taxes in financial and economic calculations.

## Methods for Performing Percentage Addition

There are several methods for performing percentage addition, including using formulas, mental math, and calculator functions.

**Using Formulas**

One of the most common methods for performing percentage addition is by using formulas. The formula for calculating percentage addition is:

Original Value + (Original Value x Percentage)

For example, let’s say the original value is $200, and the percentage to be added is 15%. Using the formula, we can calculate the percentage addition as follows:

Percentage Addition = $200 + ($200 x 0.15)

Percentage Addition = $200 + $30

Percentage Addition = $230

**Mental Math**

Another method for performing percentage addition is by using mental math. This method is often used for simple calculations and can be done quickly and easily.

To perform percentage addition using mental math, you can follow these steps:

Identify the original value.

Determine the percentage to be added.

Convert the percentage to a decimal by moving the decimal point two places to the left.

Multiply the original value by the decimal equivalent of the percentage.

Add the result of step 4 to the original value.

For example, let’s say the original value is $50, and the percentage to be added is 20%. Using mental math, we can calculate the percentage addition as follows:

- $50
- 20%
- 0.20 (move the decimal point two places to the left)
- $50 x 0.20 = $10
- $50 + $10 = $60

To use the percentage button on a calculator, you can follow these steps:

Enter the original value.

Press the percentage button.

Enter the percentage to be added.

Press the equals button.

For example, let’s say the original value is $80, and the percentage to be added is 25%. Using a calculator, we can calculate the percentage addition as follows:

Enter 80

Press the percentage button

Enter 25

Press the equals button

The calculator will then display the percentage addition, which is $20.

Percentage addition is an essential concept in many fields, and there are several methods for performing it, including using formulas, mental math, and calculator functions. By understanding the basics of percentage addition and how to perform it using different methods, you can perform accurate calculations quickly and easily, making more informed decisions in your field of study or work.