• CDW average ebitda margin for 2012-06-30 was 0%, a 0% decline from 2012-09-30.
• CDW average ebitda margin for 2012-09-30 was 0%, a 0% decline from 2012-12-31.
• CDW average ebitda margin for 2012-12-31 was 0%, a 0% decline from 2013-03-31.

Ebitda margin can be defined as earnings before interest, taxes, depreciation and amortization as a portion of total revenue.