30 Cannon Corp manufactures three products: X, Y, and Z. The selling price, variable costs, and contribution margin for one unit of each product follow: Producti X Z Selling price $180 $270 $ 240 Variable expenses: Direct materials $24 $80 $32 Other variable expenses $ 102 $90 $ 148 ve Total variable expenses $126 $ 170 $ 180 Contribution margin $ 54 $ 100 $ 60 Contribution margin ratio 30 % 37 % 25 % The same raw material is used in all three products. Cannon Corp has only 6,000 pounds of raw material on hand and will not be able to obtain any more of it for several weeks due to a strike in its supplier's plant. Management is trying to decide which product(s) to concentrate on next week in filling its backlog of orders. The material costs $8 per pound.