The following information is for Flat Bed Apparel: Line Item Description East West Sales volume (units): Product Alpha 8,100 7,300 Product Omega 4,500 8,000 Sales price: Product Alpha $14 $16 Product Omega $20 $22 Variable cost per unit: Product Alpha $8 $8 Product Omega $12 $12 a. Determine the contribution margin for the East Region and West Region. East Region: fill in the blank 1 of 2$ West Region: fill in the blank 2 of 2$ b. Determine the contribution margin ratio for the East Region and West Region. Round the contribution margin ratio to one-tenth of a percent. East Region: fill in the blank 1 of 2 % West Region: fill in the blank 2 of 2 %