NoFly Corporation sells three different models of a mosquito zapper. Model A12 sells for $59 and has variable costs of $45. Model B22 sells for $104 and has variable costs of $78. Model C124 sells for $413 and has variable costs of $314. The sales mix of the three models is A12, 56%; B22, 27%; and C124, 17%. What is the weighted-average unit contribution margin?