TTM20152014201320122011
Gross margin25.4%25.4%27.0%25.0%25.0%22.0%
Gross margin growth (bps)-159-159203-5304-70
Operating margin-2.2%-2.2%-1.8%-2.7%-4.9%-9.3%
Operating margin growth (bps)-42-428622144274
Net profit margin-1.1%-1.1%-3.6%-6.1%-6.6%-14.0%
Net profit margin growth (bps)24924925653738-123