The Stewart Cake Factory Sells Chocolate Cakes, Birthday Decorated Cakes

The Stewart Cake Factory sells chocolate cakes, birthday decorated cakes, and specialty cakes. The factory is experiencing a bottleneck and is trying to determine which cake is more profitable. Even though the company may have to limit the orders that it takes, they are concerned about customer service and satisfaction.
(A) Calculate the contribution margin per hour per cake.
(B) Determine which cakes the company should try to sell more of first, second, and then last.