Last updated on July 19th, 2018

In this article, we will see the formula to calculate the percentage difference between two Numbers in Excel. There is basically one formula to calculate this which is, **% of Difference = (New Value-Old Value)/Old Value**. Normally after applying this formula, we multiply the result with 100 to get the percentage of difference. But in Excel, you donâ€™t need to multiply 100 with the resultant number. There is a built-in feature available in Excel which automatically formats a number into a percentage.

Table of Contents

## Calculate Percentage Difference Between Two Numbers

As I stated, the formula to calculate the percentage of difference is, **% of Difference = (New Value-Old Value)/Old Value**. After applying this formula, you will get your result in number format. So, you have to format it into a percentage to get the actual result. This formula actually provides the result of percentage increase. So, if you get a negative value it means, instead of getting the percentage of increase you will get the percentage of decreases result.

Look into the above picture. Here although we applied the percentage of difference formula, the result is not in the percentage format. To get the result in percentage format, select the cells where you want to apply the formatting. After selecting the cells, select the **Percentage Style Option** which is under the **Number** section in the **Home** tab.

After applying the **Percentage Style Option, **you will get the below result.

## Percentage Difference Between Two Numbers with Custom Number Formatting

Let`s say you want to highlight the percentage of differences such that the positive values get green color and the negative values get the red color. To perform that you need to apply the** Custom Number Formatting**. First, select the cells where you want to apply this formatting and click on to the right button of your mouse to select the **Format Cells** option.

After selecting the **Format Cells** option you will get the **Format Cells** Dialogue box. In the Format Cells dialogue box select the Custom option and, in the Type filed are write, **[Green]+ 0%; [Red]- 0%; 0%** and press **OK.**

After this, you will get to see the below result.

## Download The Working File

## Conclusion

After reading this article, you will learn the excel formula to calculate the percentage difference between two numbers in Excel. Here I demonstrated two different formatting methods which can be applied to show the result in the percentage format. Feel free to comment if you have any confusions and stay connected to see more useful articles.