Rosso Coffee House sells three types of drinks: brewed coffee, iced drinks and smoothies. The sales mix is noted below: Coffee Iced Drinks Smoothies Sales Mix 60% 25% 15% Selling Price $ 3.25 $ 6.25 $ 7.50 Variable Cost $ 1.45 $ 4.00 $ 4.25 Contribution Margin ($) $ 1.80 $ 2.25 $ 3.25 CM ratio 55% 36% 43%