Nec Present Value-Unequal Lives Bunker Hill Mining Company has two competing proposals; a processing mill and an electric shovel, Both pieces of equipment have an initiat invostrnent of 5571,176, The net cash flows estimated for the two proposals are as follows: The estimated residual value of the processing mill at the end of Year 4 is $350,000. Present Value of $1 at Compound Interest Determine which equipment should be favored, comparing the net present values of the two proposals and assuming a minimum rate of retum of 12% table appearing above