Answer:
a. Make IMC2 Buy IMC2 N.I. Increase/(Decrease)
Direct Materials $63.96 $63.96
Direct Labor $41.72 $41.72
Material handling $7.50 $7.50
Variable Overhead $71.40 $71.40
Purchase Price $250.00 -$250.00
Total Unit Cost $184.58 $250.00 -$65.42
Workings: Variable Overhead = ($126.5 - $7.5) x 60% = $71.40
b. No, Innova should not purchase the component from the outside vendor if Innova's capacity remains idle.