please show excel formula

A cash flow diagram for a project at BillCo is shown below.
	Years	Initial Cost	Salvage	Op Costs	Benefits	Net Cash Flow
	0	$ (311,386.00)				$ (311,386.00)
	1			$ (54,000.00)	$ 91,000.00	$ 37,000.00
	2			$ (55,566.00)	$ 94,913.00	$ 39,347.00
	3			$ (57,177.41)	$ 98,994.26	$ 41,816.85
	4			$ (58,835.56)	$ 103,251.01	$ 44,415.45
	5			$ (60,541.79)	$ 107,690.81	$ 47,149.02
	6			$ (62,297.50)	$ 112,321.51	$ 50,024.01
	7			$ (64,104.13)	$ 117,151.34	$ 53,047.21
	8		$ 32,420.00	$ (65,963.15)	$ 122,188.84	$ 88,645.69
Use a MARR of 15%
3a. Determine the NPW
3b. Determine the AW
3c. Determine the FW
3d. Deterine the IRR
3f. Graph the NPW versus MARR
3G. Are we making or losing money at 15% MARR?