# How to Percentage Decrease Formula Excel | Quick Guide 2022

If you want to find the percentage decrease of a number, you can use the percentage decrease formula in Excel. This formula will tell you the percentage decrease of a number from its original value.

## How to calculate percentage decrease in Excel

There are many ways to calculate percentage decreases, but the simplest way is to use the INDEX function:

• To calculate the percentage decrease for a given value in a cell, you can use the INDEX function as follows:
• =INDEX(data,1)+100
• In this example, the percentage decrease would be calculated as follows:
• =INDEX(data,1)+100=101
• Therefore, the percentage decrease for the value in cell A1 is 102%.

## The percentage decrease formula in Excel

This Excel formula allows you to calculate the percentage decrease in a number value over a given period of time. In simple terms, the formula will return the percentage decrease in the number value between two given dates.

To use the percentage decrease formula in Excel, you will first need to input the original number value and the two dates you would like to compare it to. Next, you will need to input the percentage decrease percentage you would like to calculate. The formula will then return the percentage decrease in the number value between the two given dates.

Here is an example of the percentage decrease formula in action:

• Original number: 120
• Date 1: 120
Date 2: 98.3
• Percentage decrease:
• 18.7%

## How to use the percentage decrease formula in Excel There is no one-size-fits-all answer to this question, as the percentage decrease formula will vary depending on the data and what you are trying to do with it. However, here are some tips on how to use the percentage decrease formula in Excel:

• Start by selecting the data you want to use in the formula. In this example, we will be working with the sales data for the month of January.
• Next, enter the percentage decrease formula into the cell where you want the results to appear. In this example, we will be using cell C3.
• Finally, specify the column of data you want to use in the formula, and the cell where you want the result to appear. In this example, we will be using cell D3.

The percentage decrease formula in Excel will calculate the percentage decrease in the value of the cell in question from the value of the cell below it. So, in this example, the formula in cell C3 will return the percentage decrease in sales for the month of January from the value in cell B3.

## Tips for using the percentage decrease formula in Excel

Percentage decrease is a useful Excel formula for calculating the percentage change between two values.

For example, you might want to calculate the percentage decrease between two sales figures.

The formula for percentage decrease is:

• =DIFF(A2,B2)
• Where:
• A2 is the first value
• B2 is the second value
• DIFF is the different function

Note: To use the percentage decrease formula, you first need to select the cells with the information you want to calculate the percentage decrease for.

## Troubleshooting the percentage decrease formula in Excel If your data doesn’t match what the percentage decrease formula should produce, there’s a good chance you’re using the wrong function. Excel’s percentage decrease function uses the inverse of the function you use to calculate the original value, so if you were using the ABS function to calculate the original value, the percentage decrease function would use the ABS function to calculate the inverse value.

• Incorrect function usage:
• ABS(A2-A1)
• Incorrect function usage:
• ABS(A2/A1)

If you’ve tried both of these and your data still doesn’t match the expected results, there’s a good chance you’re using the wrong function. Try using the LOG function instead, and see if that produces the correct results.

## Conclusion

Percentage decrease formula excel can be used to calculate the percentage decrease in a given value over a specific period of time.