E26-7 Haggis Enterprises uses a word processing 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 New Machine Original purchase cost $15,000 $21,000 Accumulated depreciation 6,000 Estimated operating costs 24,000 20,000 Useful life 5 years 5 years If sold now, the current machine would have a salvage value of $5,000. If operated for the remainder of its useful life, the current machine would have zero salvage value. The new machine is expected to have zero salvage value after 5 years. Instructions Should the current machine be replaced? (Ignore the time value of money.)