TTM20162015201420132012
Restaurant-level operating margin20.4%20.4%21.7%21.9%21.0%19.8%
Restaurant-level operating margin growth (bps)-70-126-2789123115
Operating margin4.6%9.1%13.8%14.3%13.5%11.3%
Operating margin growth (bps)-677-464-5482221138
Net profit margin2.3%4.8%6.8%12.3%-5.4%-2.7%
Net profit margin growth (bps)-397-195-5541,767-268921

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