Basics of Engineering Economy 2nd Edition by Anthony Tarquin,Leland Blank

Exercise 5

How long will it take to recover an investment of $245,000 in enhanced CNC controls that include axis control to 8 axes (on the milling model) the associated income is $92,000 per year, expenses are $38,000 per year, and the salvage value is assumed to be 15% of the first cost Use a MARR of 15% per year.