Carla Vista Corporation sells three different models of a mosquito "zapper." Model A12 sells for $48 and has unit variable costs of $34. Model B22 sells for $96 and has unit variable costs of $67. Model C124 sells for $384 and has unit variable costs of $288. The sales mix(as a percentage of total units) of the three models is A12, 60%; B22, 15%; and C124.25%. What is the weighted average unit contribution margin? (Round answer to 2 decimal places, eg. 15.50.) Weighted-Average Unit Contribution Margin