Atlantic Wave Pacific Pounder Sales price $400 $350 Variable cost of goods sold per unit (148) (168) Manufacturing margin per unit $252 $182 Variable selling expense per unit (180) (91) Contribution margin per unit $72 $91 The sales unit volume for the territories and products for the period is as follows: dhe East Coast West Coast Atlantic Wave 2,900 1,450 Pacific Pounder 0 1,450 a. Prepare a contribution margin by sales territory report. Compute the contrit if required. Coast to Coast Surfboards Inc. Contribution Margin by Territory East Coast West Coast Sales Variable cost of goods sold Manufacturing margin Variable selling expenses Contribution margin Contribution margin ratio % %