Net units closed in 2011: 275
There are a lot of chicken chains out there eating KFC's lunch. Of parent company Yum! Brands' three big chains, KFC has struggled to retain its dominance -- while KFC shed hundreds of units, sister brands Pizza Hut and Taco Bell both added a few dozen.
Top competitor Chick-fil-A is hot on KFC's heels -- it had roughly $500 million less in revenue, but boasts a far higher per-unit gross. A typical Chick-fil-A unit rings up nearly $2.9 million a year, while KFC averages under $1 million.
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