TTM20162015201420132012
Restaurant-level operating margin29.5%30.1%30.8%30.0%31.6%31.2%
Restaurant-level operating margin growth (bps)-137-6983-16143-109
Operating margin6.5%6.7%6.0%-3.5%10.2%9.8%
Operating margin growth (bps)4468950-1,36932-209
Net profit margin-0.5%-0.4%-1.4%-7.4%5.8%5.4%
Net profit margin growth (bps)5396601-1,31939-127

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