A company is considering replacing an old piece of machinery, which cost $602,800 and has $352,100 of accumulated depreciation to date, with a new machine that has a purchase price of $484,700. The old machine could be sold for $61,000. The annual variable production costs associated with the old machine are estimated to be $156,600 per year for eight years. The annual variable production costs for the new machine are estimated to be $100,600 per year for eight years. a.1 Prepare a differential analysis dated May 29 to determine whether to continue with (Alternative 1) or replace (Alternative 2) the old machine. If an amount is zero, enter "0". If required, use a minus sign to indicate a loss. Differential Analysis Continue with Old Machine (Alt. 1) or Replace Old Machine (Alt. 2) May 29 Continue Replace with Old old Differential Machine Machine Effects (Alternative 1) (Alternative 2) (Alternative 2) Revenues: Proceeds from sale of old machine Costs: Purchase price Variable productions costs (8 years) Profit (Loss) a.2 Determine whether to continue with (Alternative 1) or replace Alternative 2) the old machine. b. What is the sunk cost in this situation? The sunk cost is $