June 21, 2018 16:54 Updated Follow The fund’s actuary determines the gross annual payroll percentage amount. Related articles Does the gross annual payroll percentage for PERF remain the same or does it change? What PERF plans can I offer my employees as a political subdivision employer? Do I have to pay the My Choice: Retirement Savings Plan supplemental rate? Where do I find the PERF handbook? What happens if I don't make an election in the PERF Hybrid plan or My Choice: Retirement Savings Plan?