marks People Window Help 8 98% ia, wed 9:37 AM ae E com/courses/10360jassignments/851481?module itemid 3188920 Tanck Industries manufactures and sells three different models of wet-dry shop vacuum cleaners. Although the shop vacs vary in terms of quality and features, all are good sellers. Tanek is currently operating at full capacity with limited machine time. Sales and production information relevant to each model follows. Standard Deluxe Selling price Variable costs and expenses Machine hours required $ 45 $ 24 0.5 $75 $ 30 0.8 $149 $ 69 1.6 Calculate contribution margin per unit. Economy Standard Deluxe Contribution margin per unit eTextbook and Media 0".- ecoa. #0@ w2x04-, MacBook Pro