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	investor relations home investor overview corporate governance and citizenship stock information financial reports SEC filings fundamentals news releases analyst coverages webcasts & presentations event calendar investor FAQs contact information Costco logo request Print Page E-mail Page RSS Feeds E-mail Alerts Financial Tear Sheet		definition << Back Operating Margin (TTM) (%) This value measures the percent of revenues remaining after paying all operating expenses. It is calculated as the trailing 12 months Operating Income divided by the trailing 12 months Total Revenue, multiplied by 100. Operating Income is defined as Total Revenue minus Total Operating Expenses.
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