TTM20172016201520142013
Gross margin23.3%23.7%23.9%24.0%23.6%24.5%
Gross margin growth (bps)-74-20-1445-9033
Operating margin-5.5%-5.0%-5.8%-3.6%-11.2%-1.7%
Operating margin growth (bps)3982-219759-946181
Net profit margin-5.7%-5.2%-5.8%-3.4%-11.2%-1.7%
Net profit margin growth (bps)1157-231779-953181