TTM20162015201420132012
Restaurant-level operating margin20.9%21.5%22.1%21.2%21.3%21.8%
Restaurant-level operating margin growth (bps)-88-5694-19-4591
Operating margin9.4%9.6%8.3%7.4%7.4%7.4%
Operating margin growth (bps)3812896-4-329
Net profit margin6.1%6.4%5.0%4.9%5.1%4.9%
Net profit margin growth (bps)4413614-211612

Notes:Restaurant-level operating margin represents domestic restaurant-level operating income, which equals domestic company-operated restaurants sales minus domestic company-operated restaurant costs, which includes cost of goods sold (food, beverage and packaging), labor, occupancy and other operating costs, expressed as a % of company-operated restaurant sales