Today the Pivot Transform has many great options. See below.

How about adding Percent of Column total.

It can be calculated as the pivot row value divided by the sum of column

Pivot

Description

Creates a pivot table to summarise values for one or two columns.

Inputs

One.

Sum show the sum of the values. Non-numeric and empty values are ignored.

Minimum shows the smallest value. Non-numeric and empty values are ignored.

Maximum shows the largest value. Non-numeric and empty values are ignored.

Average shows the arithmetic mean of the values. Non-numeric and empty values are ignored.

Median shows the median of numeric values in the column. Non-numeric and empty values are ignored.

Mode shows the mode of numeric values in the column. Non-numeric and empty values are ignored.

Standard deviation is the sample standard deviation (equivalent to Excel function stddev.s). Non-numeric and empty values are ignored.

Count shows the number of values. Empty values are ignored (a value that contains whitespace is not considered empty).