TTM20162015201420132012
Restaurant-level operating margin45.7%41.0%32.8%29.3%25.4%24.0%
Restaurant-level operating margin growth (bps)895826346387142-31
Operating margin21.2%21.9%14.7%12.1%5.7%4.5%
Operating margin growth (bps)339725254639122-60
Net profit margin7.7%9.0%8.6%6.1%1.9%0.3%
Net profit margin growth (bps)-9241254420159-13

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