TTM20162015201420132012
Restaurant-level operating margin18.7%20.0%21.1%20.0%20.0%21.5%
Restaurant-level operating margin growth (bps)-205-1131181-15128
Operating margin0.9%2.3%2.3%-2.8%0.8%3.4%
Operating margin growth (bps)-1975507-364-255182
Net profit margin0.1%0.7%0.5%-5.8%-3.2%-0.3%
Net profit margin growth (bps)-17116633-264-287-26

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