A Panera Bread Co. sign in Torrance, Calif. Margins on the fresh dough sold by St. Louis-based Panera Bread to franchisees of more than 1,700 bakery cafes in North America widened by 0.4 percentage point in the third quarter as wheat prices dropped. Illustrates WHEAT (category f) by Jeff Wilson (c) 2013, Bloomberg News. Moved: Tuesday, Dec. 10, 2013 (MUST CREDIT: Bloomberg News photo by Patrick T. Fallon). A Panera Bread Co. sign in Torrance, Calif. Margins on the fresh dough sold by St. Louis-based Panera Bread to franchisees of more than 1,700 bakery cafes in North America widened by 0.4 percentage point in the third quarter as wheat prices dropped. Illustrates WHEAT (category f) by Jeff Wilson (c) 2013, Bloomberg News. Moved: Tuesday, Dec. 10, 2013 (MUST CREDIT: Bloomberg News photo by Patrick T. Fallon).