Frank sold an antique car he had inherited, investing the proceeds of $15,000 to earn 4.84% compounded monthly. After 45 months, he converted his investment to an annuity, where he withdraws $335 at the end of each month over five years. What monthly compounded nominal rate of interest does the annuity earn during the annuity period? The nominal rate is 1% compounded monthly. (Round to four decimal places as needed.)