Please explain

3 Exercise 24-6 Net present value LO P3 1.42 points a. A new operating system for an existing machine is expected to cost $667,000 and have a useful life of six years. The system yields an incremental after-tax income of $195,000 each year after deducting its straight-line depreciation. The predicted salvage value of the system is $55,000. b. A machine costs $470,000, has a $38,000 salvage value, is expected to last eight years, and will generate an after-tax income of $105,000 per year after straight-line depreciation. eBook Assume the company requires a 11% rate of return on its investments. Compute the net present value of each potential investment. (PV of $1, FV of $1, PVA of $1, and FVA of $1) (Use appropriate factor(s) from the tables provided.) Hint Complete this question by entering your answers in the tabs below. Print Required A Required B References A new operating system for an existing machine is expected to cost $667,000 and have a useful life of six years. The system yields an incremental after-tax income of $195,000 each year after deducting its straight-line depreciation. The predicted salvage value of the system is $55,000. (Round your answers to the nearest whole dollar.) Cash Flow Annual cash flow Residual value Select Chart Present Value of an Annuity of 1 Amount x PV Factor = Present Value $ 102,000 x $ 0 0 Net present value Rocuired