Get Original number In Excel From The Percent Change

In this article, we will learn about how to calculate the old or original number from the percent value and new or updated amount in excel using a formula.
To find the old amount when the new amount and its percentage increase value is given use the formula mentioned in the article.

Generic formula:

Original Amount = New Amount / (1 + Percentage Increase)

Percent increase :

Let’s understand this formula using in the example shown below.

Here we will use the percentage increase value formula to get the original number from percentage. See the example below.


Use the Generic Formula in D3 cell

= B3 / ( 1 + C3 )

Explanation : The new amount will be divided by the percentage change plus one.
Here the values to the function are given as cell reference.

As you can see in the above snapshot the first original amount before increment is $ 7,000.00 . Here we have done the reverse calculation of percentage.

Copy the formula in the remaining cells using Ctrl + D shortcut, to get the original amount for the rest of the values in the table.

In the above snapshot the mathematical formula used to get the old amount in the excel.

Notes :

  1. The function returns #VALUE error if any of the arguments are non numeric.
  2. The function returns values for the negative as well as positive values.
  3. Use the Increase by percentage formula to get the new or updated amount having percentage increase values.

Hope you understood how to calculate Calculate old or original Amount in Excel. Explore more articles on Mathematical formulation like Increase by percentage and Profit margin percentage in Excel here. Mention your queries in the comment box below. We will help you with it.

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