Pro Bike manufactures and sells two types of bikes: road bikes and mountain bikes. The company sold 640 units of each type of bike during the year. a. Compute contribution margin (in dollars) for each product. b. Compute contribution margin ratio for each product. Which product has the better contribution margin ratio? Complete this question by entering your answers in the tabs below. Compute total contribution margin (in dollars) for each product. Pro Bike manufactures and sells two types of bikes: road bikes and mountain bikes. The company sold 640 units of eac type of bike during the year. a. Compute contribution margin (in dollars) for each product. b. Compute contribution margin ratio for each product. Which product has the better contribution margin ratio? Complete this question by entering your answers in the tabs below. Compute contribution margin ratio for each product. Which product has the better contribution margin ratio