TTM20162015201420132012
Restaurant-level operating margin16.4%16.4%21.0%21.6%18.9%17.3%
Restaurant-level operating margin growth (bps)-452-452-65268167447
Operating margin7.6%7.6%13.0%15.7%16.1%19.1%
Operating margin growth (bps)-540-540-271-36-3001
Net profit margin2.1%2.1%4.1%1.3%-3.2%-3.2%
Net profit margin growth (bps)-200-200280448-4-199

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