Blossom Corporation sells three different models of a mosquito "zapper." Model A12 sells for $51 and has unit variable costs of $36. Model B22 sells for $102 and has unit variable costs of $71. Model C124 sells for $408 and has unit variable costs of $306. 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 ploces, es. 15.50.) Weighted-Average Unit Contribution Margin