Answer:
The difference between buying and making is $14 per unit. It is $14 cheaper to make the unit.
Explanation:
Giving the following information:
Purchasing price= $85 a unit.
Variable cost per unit:
Direct materials $30
Direct labor 15
Variable factory overhead 26
Because there is unused capacity, the fixed costs won't increase. Fixed factory overhead should not be taken into account.
Total unitary variable cost= $71
The difference between buying and making is $14 per unit. It is $14 cheaper to make the unit.