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The hours per MONTH calculation is: Total Hrs / (Total days / number of months between beginning and ending date).
The Total Hrs is the total retirement hours from Payroll Payments + the adjustment retirement hours taken from Adjustments for SERS/STRS hours.
The Total days are determined by taking the beginning date used for AFFORD or the calendar start date from Positions (it uses the date from whichever position is most recent). It then subtracts the ending date used for AFFORD or the employees termination date (if checked to use the termination date as a criteria) and uses whichever is LEAST recent). If there are any breaks of 28 or more consecutive days from the BREAK calendar, those days are also subtracted from the total days. It divides the total days by the number of months between the beginning and ending date.