TTM20162015201420132012
Restaurant-level operating margin17.5%17.8%16.6%13.7%13.6%14.6%
Restaurant-level operating margin growth (bps)631122927-92148
Operating margin8.8%9.3%12.9%12.1%10.3%11.5%
Operating margin growth (bps)-449-35872187-127208
Net profit margin3.5%3.8%7.3%6.9%5.3%4.6%
Net profit margin growth (bps)-405-3503916274-1,628

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