Panther Furniture Enterprises manufactures two products: Couches and Beds. The following data are available: Sales price Variable costs Couches $550 $380 Beds $730 $425 The company can manufacture 4 couches per machine hour and 2 beds per machine hour. The company's production capacity is 13,600 machine hours per month. What is the contribution margin per machine hour for beds? $1220 O $1155 O $1830 $610