Sheridan Corporation sells three different models of a mosquito "zapper." Model A$12$ sells for $$57$ and has unit variable costs of $$40.$ Model B$22$ sells for $$114$ and has unit variable costs of $$80.$ Model C$124$ sells for $$456$ and has unit variable costs of $$342.$ The sales mix$($as a percentage of total units$)$ of the three models is A$12,60\%$; B$22,15\%$; and C$124,25\%.$

What is the weighted$-$average unit contribution margin? $($Round answer to $2$ decimal places, e$.$g$.15\mathrm{.}50.)$

Weighted$-$Average Unit Contribution Margin

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