Salvadores Manufacturing builds and sells snowboards, skis and poles. The sales price and variable cost for each follows: Selling Price Variable Cost per Unit per Unit Product Snowboards $310 $190 Skis $410 $230 Poles $60 $10 Their sales mix is reflected in the ratio 8:3:2. What is the overall unit contribution margin for Salvadores with their current product mix? Overall Unit Contribution Margin $