Custom Piechart Symbology in ArcGIS Pro

I am using ArcGIS Pro to draw Pie chart from two columns.
Actual Budget vs Planned Budget
It is working like normal pie chart that is if we have 60 in actual budget and 100 in planned budget. It will calculate percentage of actual budget with the sum of actual budget and planned budget. This percentage will be depicted in Pie chart. so in this example it will be 60/(100+60) = 37.5%

This is the normal working of pie chart even if we draw it in excel. What i want is instead of creating a chart like this i want to show actual budget percentage. So in the above example instead of getting 37.5% i want to get 60/100 = 60%. And i want my pie chart in ArcGIS Pro symbology to show me 60% area covered.