Consider the following cash flows: Year Cash Flow 0 $ 19,400 1 10,400 2 9,320 3 6,900 a. What is the NPV at a discount rate of zero percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is the NPV at a discount rate of 10 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What is the NPV at a discount rate of 20 percent? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) d. What is the NPV at a discount rate of 30 percent? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)