TTM20172016201520142013
Restaurant-level operating margin16.4%48.1%41.0%32.8%29.3%25.4%
Restaurant-level operating margin growth (bps)-202709826346387142
Operating margin19.3%17.6%21.9%14.7%12.1%5.7%
Operating margin growth (bps)-198-438725254639122
Net profit margin16.9%15.9%9.0%8.6%6.1%1.9%
Net profit margin growth (bps)92068341254420159

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