TTM20152014201320122011
Gross margin45.8%46.1%45.9%46.0%46.5%46.3%
Gross margin growth (bps)-9020-9-502238
Operating margin-0.5%-1.2%-2.1%-3.4%3.5%-1.1%
Operating margin growth (bps)697124-686461-578
Net profit margin-1.2%-1.9%-3.0%-15.4%1.5%10.8%
Net profit margin growth (bps)51071,244-1,694-924686