TTM20162015201420132012
Restaurant-level operating margin-13.5%-13.5%-5.5%-2.2%2.0%-0.9%
Restaurant-level operating margin growth (bps)-799-799-334-415291484
Operating margin50.7%50.0%39.4%45.3%42.7%36.4%
Operating margin growth (bps)1,1281,063-585257631370
Net profit margin24.8%23.6%13.0%23.6%20.6%16.5%
Net profit margin growth (bps)1,0481,062-1,0582984121,097

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