TTM20172016201520142013
Restaurant-level operating margin15.4%16.8%17.8%16.6%13.7%13.6%
Restaurant-level operating margin growth (bps)-172-941122927-92
Operating margin12.0%13.4%9.3%12.9%12.1%10.3%
Operating margin growth (bps)-97409-35872187-127
Net profit margin7.5%7.5%3.8%7.3%6.9%5.3%
Net profit margin growth (bps)27366-3503916274

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