OK so I started on the first one for net present value A and I think I got that correct BCND have a different percentage. I tried to go through it and I can't seem to understand why I'm making a mistake can you help?

Problem 8-9 Calculating NPV [LO 4] Consider the foliowing cesh flows: a. What is the NPV at a discount rate of zero percent? Note: Do not round intermediate calculations and round your answer to the nearest whole number, e.9., 32. b. What is the NPV at a discount rate of 9 percent? Note: Do not round intermediote calculations and round your answer to 2 decimol ploces, e.g. 32.16. Note: A negative answer should be indicoted by a minus slgn. Do not round intermediate calculations and round your answer c. What is the NPV at a discount rate of 19 percent? to 2 decimol ploces, e.g. 32.16 . Note: A negative answer should be indiceted by a minus sign. Do not round intermediate caleulations and round your answer d. What is the NPV at a discount rate of 29 percent? to 2 decimal ploces, e.9- 32.16