A company Is considering replacing an old plece of machinery, whlch cost $597,500 and has $349,600 of accumulated depreclatlon to date, with a new machine that has a purchase price of $483,200. The old machine could be sold for $62,800. The annual variable production costs associated with the old machine are estimated to be $156,000 per year for 8 years. The annual variable production costs for the new machine are estimated to be $101,200 per year for 8 years. a.1 Prepare a differential analysis dated December 10 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 (Alt. 1) or Replace (Alt. 2) Old Machine naramhar in 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 $