Find 

1) Payback PD 

2) NPV and decide 

3) Profit Index and decide 

4) Ann rate of ret (assume salvage=D0)

Cost=4400 6 ann net cash flows of 1,000 each 6 ann net inc=900 each rate=10% Find 1) Payback PD 2) NPV and decide 3) Profit Index and decide 4) Ann rate of ret (assume salvage=D0)