Answer:
The new machine should NOT be purchased.
Step-by-step explanation:
Annual total cost saving = Direct labor cost saving + Indirect labor costs saving = $500 + $200 = $700
Using the formula for calculating the present value of an ordinary annuity, the present value of the annual total cost saving can be calculated as follows:
PV = P * ((1 - (1 / (1 + r))^n) / r) …………………………………. (1)
Where;
PV = Present value the total annual cost saving = ?
P = Total annual cost saving = $700
r = interest rate = 8%, or 0.08
n = number of years = 4
Substitute the values into equation (1), we have:
PV = $700 * ((1 - (1 / (1 + 0.08))^4) / 0.08)
PV = $2,318.49
Net present value of new machine tool = – Cost of the new machine tool + PV = – $3700 + $2,318.49 = – $1,381.51
Salvage value existing machine tool now = $1,000
Since the Salvage value existing machine tool now is $1,000 while the Net present value of new machine tool is –$1,381.51, the new machine should NOT be purchased.