Swifty Enterprises uses a computer to handle it sales invoices. Lately, business has been so good that it takes an extra 3 hours per night, hus 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 New Machine $15.000 $25,200 Original purchase cost Accumulated depreciation Estimated annual operating costs Remaining useful life $5.900 $25,000 $19,500 5 years yas I cold now, the current machine would have alwe value of $8,100. rented for the remainder of its use the current machine would have more salvagua. The new machine is expected to have zero salvar value after years Should the current machine be replaced in the first calmente costs and positive amounts and any amounts received seative amounts the the third counter income increases a positive coverative amounts in theative won preceding the numbered or parentheses (45) Retain Machine Replace Machine Net Income Increase (Decrease) ) Operating costs $ New machine cost Salvage value old Total