third time asking this question still not correct

Your answer is incorrect. Try again NoFly Corporation sells three different models of a mosquito zapper." Model A12 sells for $54 and has variable costs of $43. Model 822 sels for $106 and has variable costs of $76. Model C124 ses for $406 and has variable costs of $311. The sales mix of the three models is A12, 56%; B22, 27, and C124,17% What is the weighted average unit contribution margin? (Hound answer to 2 decimal places, 9. 15.50.) 29,20 Weighted Average Unit Contribution Margin Click if you would like to show Work for this question One Show Work