- FULL SCREENPRINTIRVRSON 4BACK Exercise 21-14 ohnson Enterprises uses a computer to handle its sales invoices. Lately, business has been so good that it takes an extra 3 hours per night, plus every third Saturday, to keep up with the volume of sales invoices. Management is considering updating its computer with a faster model that would eliminate all of the overtime processing. Current Machine $15,200 $6,900 24,800 5 years New $25,200 $19,500 Machine Accumulated depreciation Estimated annual operating costs 5 years the current machine would havea salvage value of S9.300lf operated for the remainder of its useful life, the cument machine would machine is expected to have zero salvage value after 5 years machine be replaced? (fo the first two columns, enter costs and expenses as positive amounts, and any amount s received as negative ammounts. In negative amounts. Enter negative amounts using either a negative sig Net Income (Decrease) the third column, enter net income increases as positive amounts preceding the number e.g. 45 or pprentheses e.g. (45).) and decreases as Retain Machine Replace Hachine Operating costs s