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 New Machine Original purchase cost $15,000 Accumulated Depreciation $7,000 Estimated annual operating cost $25,000 Remaining useful life 4 years $25,000 $20,000 4 years If the current machine is sold, Afrah would receive $6,000. 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. If Afrah Company sold its old machine, how much the gain or loss on the sale