TTM20152014201320122011
Restaurant-level operating margin6.1%10.5%12.1%16.1%18.0%15.6%
Restaurant-level operating margin growth (bps)-186-155-403-188240339
Operating margin-18.5%6.3%-1.5%1.0%0.3%-3.7%
Operating margin growth (bps)-2,396786-25577394242
Net profit margin-19.0%5.8%-1.6%0.9%0.1%-3.7%
Net profit margin growth (bps)-2,423739-24878380268

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