Combining Pay Dates in a Report

Summary

Need to combine all Results by Date Paid into one Number by Month

Content

Greetings,

I have a detailed pivot table that displays the run results by pay period by payroll types (monthly bi-weekly).  Does anyone have a report example or insight on the steps needed to combine all pay period results for a month in to one number?  For example, results form pay dates 7/14, 7/28 and 7/31 would be for July, 8/12, 8/26. and 8/31 would be listed under August.

I doing this through an analysis using the Payroll - Payroll Run Results subject area.

I searched the reports section and could not find anything.