Contribution Margin by Segment The following data are for Elm Leaf Apparel: East West Sales volume (units): Product XX 7,500 6,700 Product YY 6,300 13,300 Sales price: Product XX $24 $23 Product YY $30 $29 Variable cost per unit: < Product XX $14 $14 Product YY $18 $18 a. Determine the contribution margin for Product YY. 372,480 X b. Determine the contribution margin for the West Region. 337,920 X