Using a discount rate of 6% compounded monthly, calculate the present value of monthly payments of $325 for 7 years if the payments are made: a. At the end of each month? (Do not round intermediate calculations and round your final answer to 2 decimal places.) PV b. At the beginning of each month? (Do not round intermediate calculations and round your final answer to 2 decimal places.) PV(due) 2$ c. By what percentage does the answer to Part (b) exceed the answer to Part (a)? (Do not round intermediate calculations and round your final answer to 1 decimal place.) Percent difference