Pro Bike manufactures and sells two types of bikes: road bikes and mountain bikes. The company sold 630 units of each type of 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? Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Required A Required A Computer suar cumbution margin (in dollars) for each product