A company is considering replacing an old piece of machinery, which cost $168,000 and has $88,000 of accumulated depreciation to date, with a new machine that has a purchase price of $107,900. The old machine could be sold for $90,100. The annual variable production costs associated with the old machine are estimated to be $11,200 per year for 8 years. The annual variable production costs for the new machine are estimated to be $8,000 per year for 8 years.

a. Prepare a differential analysis dated April 29 to determine whether to Continue with Old Machine (Alternative 1) or Replace Old Machine (Alternative 2). If an amount is zero, enter "0". For those boxes in which you must enter subtracted or negative numbers use a minus sign.

Differential Analysis
Continue with Old Machine (Alt. 1) or Replace Old Machine (Alt. 2)
April 29
	Continue with Old Machine (Alternative 1)	Replace Old Machine (Alternative 2)	Differential Effects (Alternative 2)
Revenues:
Proceeds from sale of old machine	fill in the blank	fill in the blank	fill in the blank
Costs:
Purchase price	fill in the blank	fill in the blank	fill in the blank
Variable production costs (8 years)	fill in the blank	fill in the blank	fill in the blank
Profit (loss)	fill in the blank	$fill in the blank	$fill in the blank

b. What is the sunk cost in this situation?

The sunk cost is ______