Answer:
Contribution per machine hour = $4 per machine hour
Step-by-step explanation:
The contribution per machine is the total contribution made divided by the total machine hours consumed.
Contribution per machine hour = Total contribution/Total machine hours
The total contribution made = Unit contribution × unit sold
unit contribution = selling price - variable cost
= 10-8= $2 per unit
Total contribution = $2× 4,000= $8,000
Total machine hour = 2,000
Contribution per machine hour= 8,000/2,000 = $4 per machine hour
Contribution per machine hour = $4 per machine hour