Crane Corporation sells three different models of a mosquito "zapper." Model A12 sells for $57 and has variable costs of $43. Model B22 sells for $109 and has variable costs of $72. Model C124 sells for $407 and has variable costs of $303. The sales mix of the three models is A12, 55%; B22, 30%; and C124, 15%. What is the weighted-average unit contribution margin? (Round answer to 2 decimal places, e.g. 15.50.) I Welghted-Average Unit Contribution Margin