Crane Corporation sells three different models of a mosquito " 2apper. "Model A12 selis for $52 and has unit yariable costs of $36. Model B22 sells for $104 and has unit variable costs of $73. Model C124 sells for $416 and has unit variable costs of $312. The sales mixias a percentage of total units) of the three models is A12,60B,B22,15, and C124,25X What is the weighted-averaige unit contribution margin? (Round answer to 2 decimal places, e 3.15,50. )