Keep or Replace Machine: Skiles Coporation is a manufacturer of classic rocking chairs. The company has been using a particular sanding and finishing machine for over 10 years and believes that it may be time to replace the machine. The company is trying to decide whether replacing the old machine is a wise economic decision. The company's controller pulled together the following information on the old machine and the new possible replacement machine. Old Machine: Original cost $439,200 Current accumulated depreciation 317,500 Estimated annual variable manufacturing costs for machine 71,650 Estimated selling price of machine 159,900 Estimated remaining useful life (in years) New Machine: Purchase cost $802,000 50,150 Estimated annual variable manufacturing costs for machine Estimated residual value Estimated useful life in years) Select the relevant or irrelevant information below: Annual variable costs of old machine Relevant Selling price of old machine Relevant Annual variable costs of old machine Relevant Selling price of old machine Relevant Matching lives Relevant Purchase price of new machine Relevant Accumulated depreciation of old machine Irrelevant Fill in the differential analysis. Replace or keep Decision Differential Analysis Report Cost of replacing old machine: Annual differential decrease in cost x number of years Total differential decrease in cost Proceeds from sale of present machine Cost of new machine Net differential (increase)/decrease in cost, six year total