TTM20172016201520142013
Gross margin44.8%45.0%45.5%46.1%45.9%46.0%
Gross margin growth (bps)-46-55-5920-9-50
Operating margin-3.2%-3.9%0.2%-1.2%-2.1%-3.4%
Operating margin growth (bps)-199-40713797124-686
Net profit margin-3.4%-4.0%-0.5%-1.9%-3.0%-15.4%
Net profit margin growth (bps)-145-3521401071,244-1,694