Salvador Manufacturing builds and sells snowboards, skis and poles. The sales price and variable cost for each are shown: Snowboards Skis Poles Product Salvador Manufacturing data Selling price per unit Variable cost per unit $320 $170 400 225 50 20 Their sales mix is reflected in the ratio 7:3:2. Calculate the following: Contribution margin for Snowboards (based on mix) Contribution margin for Skis (based on mix) Contribution margin for Poles (based on mix) . Contribution margin per composite unit