The following data are for Trendy Fashion Apparel: North South Sales volume (units): Blouses 5,000 5,000 Skirts 4,000 8,000 Sales price per unit: Blouses $20.00 $22.00 Skirts $18.00 $20.00 Variable cost per unit Blouses $7.00 $9.00 Skirts $9.00 $11.00 Determine the contribution margin for the following:

a. Skirts $

b. The South Region $