Pronghorn Industries sells three different sets of sportswear. Sleek sells for $44 and has unit variable costs of $24, Smooth sells for $64 and has unit variable costs of $54; Potent sells for $74 and has unit variable costs of $54. The sales mix of the three sets is: Sleek, 50%: Smooth, 30%; and Potent, 20% What is the weighted average unit contribution margin? Weighted average unit contribution margin $