TTM20172016201520142013
Gross margin24.9%25.4%26.3%27.4%25.7%28.9%
Gross margin growth (bps)-140-85-110163-318-4
Operating margin0.0%-7.3%-4.1%-0.7%-2.4%2.0%
Operating margin growth (bps)-43-318-345178-4452
Net profit margin-7.6%-8.3%-3.5%-0.4%-1.5%1.3%
Net profit margin growth (bps)-202-479-315110-282-17