TTM20172016201520142013
Gross margin12.4%14.3%14.5%14.3%14.5%12.8%
Gross margin growth (bps)-186-2022-21166-71
Operating margin0.9%1.5%2.3%1.9%1.8%-2.4%
Operating margin growth (bps)-87-84434426-260
Net profit margin4.2%5.2%1.4%1.4%1.4%-11.3%
Net profit margin growth (bps)334383-751,267-341