Pharoah Corporation sells three different models of a mosquito "zapper." Model A12 sells for $56 and has unit variable costs of $39. Model B22 sells for $112 and has unit variable costs of $78. Model C124 sells for $448 and has unit variable costs of $336. 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, e.g. 15.50.) Weighted-Average Unit Contribution Margin \$