A new automatic controller can be installed for $30,000 and will have a $3,000 salvage value after 10 years. This controller is expected to decrease operating costs by $4,000 per year.
A. What rate of return is expected if the controller is used for 10 years.
B. For what life will the controller give a return of 15%.
Please see attached file.
Initial Investment = 30,000
Scrap Value = 3,000
Thus, Average Investment (AI) = (30,000+3,000)/2 = 16,500
Annual Depreciation = (30,000-3,000)/10 = ...
The solution finds the rate of return on a tool investment.