Concord Industries sells three different sets of sportswear. Sleek sells for $54 and has unit variable costs of $34;5m ooth sells for $74 and has unit variable costs of $64; Potent sells for $84 and has unit variable costs of $64. The sales mix of the three sets is: Sleek, 50. Smooth. 30\%, and Potent, 20\%. What is the weighted average unit contribution margin? Weighted-iverage unit contribution margin.