I'm using ArcMap 10.4.1 and I have a map showing points on a map.
Each point represents a measurement of a specific radio frequency and has an attribute of signal strength.
The legend displays discrete bins of data within a range of possible radio frequency values. I want to display the percentage of total points in each bin.
When I use the Legend Properties I'm able to display the count of points in each bin (checked 'show feature count' box in image below), but not the percentage.
How can I add percentage instead of count to my legend?