# How to Calculate Accuracy Percentage in Excel (3 Methods)

Assume you have the following dataset. It contains the forecasted demand units and actual demand units for products.

## Method 1 – Calculate Accuracy Percentage with Excel ABS Function

• Enter the following formula in the first cell of your Accuracy column.
`=1-ABS(C5/D5-1)`
• Click on the % icon on the Home Ribbon to apply the percentage number format.
• Double-click on the Fill Handle icon or drag it down to apply the formula to the cells below.

## Method 2 – Compute Accuracy Percentage with the IF Function

• Enter the following formula in the first cell of your Accuracy column.
`=1-IF(C5>D5,(C5-D5)/D5,(D5-C5)/D5)`
• Click the %Â icon on the Home Ribbon to apply the percentage number format.
• Double-click on the Fill Handle icon or drag it down to apply the formula to the cells below.

## Method 3 – Use the MIN-MAX Combination to Calculate Accuracy Percentage

• Enter the following formula in the first cell of your Accuracy column.

`=1-(MAX(C5:D5)-MIN(C5:D5))/D5`

• Click the %Â icon on the Home Ribbon to apply the percentage number format.
• Double-click on the Fill Handle icon or drag it down to apply the formula to the cells below.

## Errors in Accuracy Percentage Calculations

When the Forecast data is much different than the Demand value, this can result in a negative or zero accuracy percentage.

In this case, calculating the error percentage can be better than figuring the Accuracy Percentage.

• If the Demand value becomes zero, then Excel will show the #DIV/0! Error.

## Things to Remember

• You must use the actual value (Demand) in the denominator in the formula while calculating the accuracy percentage.
• Make sure to use parentheses and brackets properly in formulas.

## Related Articles

<< Go Back to Percentage Formula Examples |Â Calculating PercentagesÂ | Calculate in Excel | Learn Excel

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Md. Shamim Reza, a marine engineer with expertise in Excel and a fervent interest in VBA programming, sees programming as a time-saving tool for data manipulation, file handling, and internet interaction. His diverse skill set encompasses Rhino3D, Maxsurf C++, AutoCAD, Deep Neural Networks, and Machine Learning. He holds a B.Sc in Naval Architecture & Marine Engineering from BUET and has transitioned into a content developer role, generating technical content focused on Excel and VBA. Beyond his professional pursuits,... Read Full Bio

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