July 25, 2018 19:57 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? What happens if I don't make an election in the PERF Hybrid plan or My Choice: Retirement Savings Plan? Where do I find the PERF handbook?