NoFly Corporation sells three different models of a mosquito "zapper." Model A12 sells for $51 and has variable costs of $35. Model B22 sells for $101 and has variable costs of $71. Model C124 sells for $401 and has variable costs of $301. The sales mix of the three models is A12,55%; B22, 25%; and C124, 20%. What is the weighted average unit contribution margin? (Round answer to 2 decimal places, e.g. 15.50.) Weighted-Average Unit Contribution Margin $