Salvadores Manufacturing builds and sells snowboards, skis and poles. The sales price and variable cost for each follows: Selling Price Variable Cost Product per Unit per Unit Snowboards $320 Skis $400 $180 $200 $10 Poles $60 Their sales mix is reflected in the ratio 6:3:2. What is the overall unit contribution margin for Salvadores with their current product mix? Overall Unit Contribution Margins 140 X