Some of the biggest, best-known brands in fast food continue to struggle. QSR Magazine's Top 50 report recently spotlighted the 50 largest chains by 2011 systemwide revenue. The interesting thing: 19 of those 50 chains shrank last year.
Who's closing the doors while their competitors soar? Here's a look at the ten brands that lost the most units last year.
(Photo: AP/Pa Wellenbach) More From Forbes
: 25 Big Companies Betting On America 10 Horrific Business Mistakes The Big Fast-Food Chains That Are Closing Restaurants The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.