A project has the following cash flows:

Year	Cash Flow
0	$	16,900
1		7,600
2		8,900
3		7,400

a.	What is the NPV at a discount rate of zero percent? (Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32.)
b.	What is the NPV at a discount rate of 12 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 21 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 28 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.)