Problem 6-1 Present Value and Multiple Cash Flows [LO1] McCann Co. has identified an investment project with the following cash flows. a. If the discount rate is 10 percent, what is the present value of these cash flows? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is the present value at 20 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What is the present value at 30 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)