TTM20172016201520142013
Gross margin44.6%44.5%44.6%43.8%43.1%43.7%
Gross margin growth (bps)6-27475-59137
Operating margin2.4%2.5%2.0%-0.6%-3.5%0.0%
Operating margin growth (bps)7447264282-350326
Net profit margin2.0%2.1%2.9%-0.4%-3.6%0.5%
Net profit margin growth (bps)-69-82327318-406-671