Answer:
Contribution margin for couches is $700 per machine hour
Step-by-step explanation:
Contribution = Sales Price - Variable Cost
Contribution per unit of Couches = $700 - $350 = $350
Total units in one hour = 2
Contribution per unit of Bed = $900 - $400 = $500
Total units in one hour = 1
Contribution per machine hour for couches = Contribution per unit of couches X number of units in one hour = $350 X 2 = $700 per machine hour.
Contribution margin for couches is $700 per machine hour.