Answer:
Cool System should choose to Make the switch.
Step-by-step explanation:
Outsourcing analysis which considers only the relevant variable cost per unit can be prepared as follows:
Details Make ($) Outsource ($) Difference ($)
A B C = A - B
Direct materials 5.00 5.00
Direct labor 3.00 3.00
Variable overhead 6.00 6.00
Outsourcing price 15.00 –15.00
Total differential 14.00 15.00 –1.00
The analysis above shows that the total differential per unit is minus $1 which indicates that outsourcing is $1 per unit more expensive than make. Therefore, Cool System should choose to Make the switch.