a. A new operating system for an existing machine is expected to cost $520,000 and have a useful life of six years. The system yields an incremental after-tax income of $150,000 each year after deducting its straight-line depreciation. The predicted salvage value of the system is $10,000 b. A machine costs $380,000, has a $20,000 salvage value, is expected to last eight years, and will generate an after-tax income of $60,000 per year after straight-line depreciation. Assume the company requires a 10% rate of return on its investments. Compute the net present value o each potential investment PV of S1, EV of S1. PVA of $1 and FVA of $) (Use appropriate factorfs) from the tables provided.) Complete this question by entering your answers in the tabs below. Required A Required B A new operating system for an existing machine is expected to cost $520,000 and have a useful life of six years. The system yields an incremental after-tax income of $150,000 each year after deducting its straight-line depreciation. The predicted salvage value of the system is $10,000. (Round your answers to the nearest whole dollar.) Amount x PV Factor Annual cash now Residual value