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Five years ago, Thomas Martin installed production machinery that had a first co

ID: 2754816 • Letter: F

Question

Five years ago, Thomas Martin installed production machinery that had a first cost of $25,000. At that time initial yearly costs were estimated at $1,250, increasing by $500 each year. The market value of this machinery each year would be 90% of the previous year's value. There is a new machine available now that has a first cost of $27,900 and no yearly costs over its five-year minimum cost life. If Thomas Martin uses an 8% before-tax MARR, when, if at all, should he replace the existing machinery with the new unit?

Explanation / Answer

Current Market value of existing machinery = $25000 *(0.90)^5 = $ 14,762.25
Cost of new machinery                                                                      = $ 27,900

Calculation of Present value of net cash outflow

Cost of new machinery                                                                   = $ 27,900.00
Less: resale value of existing machinery                                    = $ (14762.25)
Present value of net cash outflow                                                 = $ 13137.75

Present value of cash inflow (Saving in expenses)

Year    Expenses Saved ($)               PVF at 8%            Present value ($)
1                      3750                                      0.926                      3472.50
2                      4250    0.851    3616.75
3    4750    0.794    3771.50
4    5250    0.735    3858.75
5    5750    0.681    3915.75     
                                                                                                       18635.25
i.e if we replace the machinery, we would be able to save yearly expenses amlounting to $ 18635.25 (Present value)

Accordingly,
Present value of cash outflow                                              = ($ 13137.75)
Present value of expenses saved                                       = $ 18635.25
Net present value (benefit)                                                 = $ 5497.50

Thus, it's beneficial to replace the machinery now.