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 $310 $150 Skis $420 $200 Poles $50 $30 Their sales mix is reflected in the ratio 7:3:1. What is the overall unit contribution margin for Salvadores with their current product mix? Overall Unit Contribution Margin 89.518 X Feedback Check My Work Determine the contribution margin for each item. Multiply the contribution margin by the corresponding ratio factor for each item. Add all three amounts to obtain the overall unit contribution margin