Compute the payback period for each of these two separate investments a. A new operating system for an existing machine is expected to cost $290,000 and have a useful life of four years. The system yields an incremental after-tax income of $83,653 each year after deducting its straight-line depreciation. The predicted salvage value of the system is $11,000 b. A machine costs $190,000, has a $15,000 salvage value, is expected to last eleven years, and will Payback Period Choose Numerator: Cost of investment Choose Denominator:Payback Period Annual net cash flow Payback period 4.16 years 14.19 years 290,000I 90,000 S 69,750 13,390 1