TTM20172016201520142013
Gross margin19.6%19.5%18.4%18.4%18.6%19.0%
Gross margin growth (bps)591113-26-3594
Operating margin-8.6%-2.7%0.4%-0.0%0.8%1.3%
Operating margin growth (bps)-765-30642-83-4716
Net profit margin-11.7%-6.3%0.7%0.1%0.6%6.8%
Net profit margin growth (bps)-1,101-69955-44-620545