Answer:
14.29%
Step-by-step explanation:
Given:
Cost of the new machine = $ 140,000
Salvage value = 0
Operation and maintenance cost per year = $ 18,000
Savings in labor and other costs per year = $ 48,000
Now,
depreciation per year = Cost of new machine / Total life
or
depreciation per year = $140,000 / 14 = $ 10,000
therefore,
the Net income from the new machine per year
= Savings in labor and other costs - Operation and maintenance cost - depreciation
or
= $ 48,000 - $ 18,000 - $ 10,000 = $ 20,000
Now,
the simple rate of return = ( Net income / Initial investment ) × 100%
or
the simple rate of return = ( $ 20,000 / $ 140,000 ) × 100%
= 14.285% ≈ 14.29%