What is the future value of a $830 annuity payment over six years if interest rates are 10 percent? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Future value What's the present value of a $830 annuity payment over six years if interest rates are 10 percent? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Present value What's the present value, when interest rates are 7.5 percent, of a $200 payment made every year forever? (Round your answer to2 decimal places.) Present value