TTM20162015201420132012
Restaurant-level operating margin24.1%24.4%24.6%23.3%24.0%23.6%
Restaurant-level operating margin growth (bps)-155-19132-6839296
Operating margin18.4%18.4%18.3%17.3%17.4%16.8%
Operating margin growth (bps)24797-959114
Net profit margin9.1%8.7%8.7%8.2%7.9%6.7%
Net profit margin growth (bps)54-2542212432

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