ment OVER Purchase cost $813,100 Estimated annual variable manufacturing costs for machine 51,400 NG Estimated residual value O IALY... 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 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