Answer the Following Questions Using the Information Below:
Aurum Appliances

Answer the following questions using the information below:
Aurum Appliances manufactures three sizes of kitchen appliances: small, medium, and large. Product information is provided below.
$\begin{array}{lcrrr}&\text { Small }&\text { Medium }&\text { Large }\\\text { Unit selling price }&\$400&\$600&\$1,200\\\text { Unit costs: }\\\text { Variable manufacturing } & (220) & (280) & (500) \\\text { F1×ed manufacturing } & (80) & (130) & (240) \\\text { Fixed selling and administrative } & (60) & (75) & (120) \\\text { Unit profit } & \$ 40 & \$ 115 & \$ 340\\\\\text { Demand in units } & 100 & 120 & 100 \\\text { Machine-hours per unit } & 20 & 40 & 100\end{array}$ The maximum machine-hours available are 6,000 per week.
-What is the contribution margin per machine-hour for a medium appliance?

A) $1.15
B) $2.34
C) $6.13
D) $4.90