Answer:
1. $46,550
2. $405,000
3. $450,600
Explanation:
1. Computation of differential cost regarding the decision to buy the model 200
Differential cost = Cost of a new model 300 - Cost of a new model 200
Differential cost = $396,350 - $349,800
Differential cost = $46,550
So, the differential cost regarding decision to buy model 200 is $46,550.
2. Sunk costs are the costs which are already incurred by the entity in the past and which are not relevant to decision made today. In this case, sunk cost is the cost of the machine purchased seven years ago for $405,000.
3. Opportunity cost is the profit forgone by chosen alternative course of action. In this case, the Opportunity cost regarding the decision to invest in the model 200 machine is $450,600.