TTM20172016201520142013
Restaurant-level operating margin23.1%23.1%24.4%24.6%23.3%24.0%
Restaurant-level operating margin growth (bps)-135-135-19132-6839
Operating margin18.7%18.7%18.4%18.3%17.3%17.4%
Operating margin growth (bps)3333797-959
Net profit margin10.0%10.0%8.7%8.7%8.2%7.9%
Net profit margin growth (bps)129129-25422124

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