PERCENTOF function

Applies To
Excel for Microsoft 365

Use the PERCENTOF function to return the percentage that a subset makes up of a given data set. It commonly used in GROUPBY and PIVOTBY functions. 

Note

PERCENTOF is logically equivalent to =SUM(data_subset)/SUM(data_all)

Syntax

The PERCENTOF function sums the values in the subset and divides it by all the values.  

=PERCENTOF(data_subset,data_all)

Argument Description
data_subset
Required
The values that in the data subset
data_all
Required
The values that make up the entire set.

Example

Example 1 uses PERCENTOF to calculate the percentage that Bib-Shorts and Bike Racks comprise of the entire set.

=PERCENTOF(C3:C4,C3:C14)