Selling price Variable cost per unit Ttal units produced Machine-hours required to produce one unit Total machine hour available Coffee machine Coffee bean grinder 8,000.00 9,000.00 S S 5,600.00 S 6,800.00 180 2 1000 What is the contribution margin for per constrain resources? Coffee machine $1,440,000.00 ;Coffee bean grinder $1,620,000.00 Coffee machine $432,000.00 ;Coffee bean grinder $1,224,000.00 None of the other alternatives are correct. Coffee machine $1,008,000.00 ;Coffee bean grinder $1,224,000.00 Coffee machine $1,200,000.00 ;Coffee bean grinder $550,000.00