Big Bikes manufactures and sells mountain bikes in two sales territories, West Coast and East Coast. Information for the year follows. The company sold 530 bikes in each territory.

Per unit	West Coast	East Coast
Sales price	$ 1,300	$ 1,200
Variable cost of goods sold	750	750
Variable selling and administrative expenses	160	30

a. Compute contribution margin (in dollars) for each sales territory. b. Compute contribution margin ratio for each sales territory. Which sales territory has the better contribution margin ratio?