Answer:
1. $47,800
2. $337,000
3. $395,000
Explanation:
1. The differential cost is the difference between the alternatives chosen. It is computed below:
= Replacing cost - new machine costing
= $326,800 - $279,000
= $47,800
2. The sunk cost is that cost which is not recovered. It is a past cost. In the given question, the machine was purchased seven years ago for $337,000. So, this is a sunk cost
3. The opportunity cost is that cost which is best from the given choices. So, the $395,000 is an opportunity cost as it provides a return of total $395,000