The table below gives the Market share for the U.S. Beer industry in 2015 Calculate the 4-Firm Concentration Ratio for this industry (show all your work) Explain what it tells you about the beer industry in the U.S.

Market Share for the U.S. Beer Industry in 2015 Firm Market Share (%) Anheuser-Busch InBev 43.5% Miller Coors, LLC 25.1% Constellation/Crown 7.4% Heineken USA 3.9% Pabst Brewing 2.5% All Others* 17.6% Each firm has less than 1% market share Source: Beer Marketer's Insights 2016