A current asset (defender) is being evaluated for potential replacement. It was purchased four years ago at

Question:

A current asset (defender) is being evaluated for potential replacement. It was purchased four years ago at a cost of $62,000. It has been depreciated as a MACRS (GDS) five-year property-class asset. The present MV of the defender is $12,000. Its remaining useful life is estimated to be four years, but it will require additional repair work now (a one-time $4,000 expense) to provide continuing service equivalent to the challenger. The current effective income tax rate is 39%, and the after-tax = 15% per year. Based on an outsider viewpoint, what is the after tax initial investment in the defender if it is kept (not replaced now)?
MARR
Minimum Acceptable Rate of Return (MARR), or hurdle rate is the minimum rate of return on a project a manager or company is willing to accept before starting a project, given its risk and the opportunity cost of forgoing other...