Pivot table column result - total percentage

In my pivot table on the "Rep Level" tab, I need my E column on my pivot table to show an overall percentage of the total sum of exceptions (column D) divided by the total sum of estimates (column C) for each person. Example: cell E4 needs to show the percentage of D4/C4. The answer should should come to 19.52%. What value field settings or pivot table setup do I need to change to get it to calculate the right result?

The sole reason I was using the pivot table is new information will be added throughout the year on the Reinspections tab with new names that aren't already in my list and a simple refresh of the pivot table will bring the new data into the calculations.

I would love to know how you added that to the pivot table with the formula needed!

I think I found it in the PivotTable Analyze tab.

Thank you this was the answer I was looking for!! Any chance you know how I can get the pivot table to automatically refresh when new data is entered on the Reinspections tab? I turned on the feature to automatically refresh when the file is open, but is there another option that would make it instant once new data is added?