TTM20162015201420132012
Restaurant-level operating margin15.2%14.5%14.2%12.6%13.0%13.1%
Restaurant-level operating margin growth (bps)8838157-45-351
Operating margin10.3%9.6%9.0%7.8%7.6%7.4%
Operating margin growth (bps)11566120152253
Net profit margin6.9%6.5%5.8%4.9%4.4%4.0%
Net profit margin growth (bps)897384494449

Notes:Restaurant-level operating margin represents restaurant-level operating income, which equals company-operated restaurants sales minus 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