TTM20172016201520142013
Restaurant-level operating margin15.8%15.6%16.2%16.5%15.6%14.7%
Restaurant-level operating margin growth (bps)-16-60-33939260
Operating margin26.2%25.8%21.0%19.2%17.9%16.4%
Operating margin growth (bps)4424811811341429
Net profit margin13.7%13.3%10.6%10.6%8.7%6.8%
Net profit margin growth (bps)271277-719619113

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