http://www.zdnet.com/yahoo-says-microsoft-search-providing-31-percent-of-revenues-report-7000024152/ [zdnet.com]

Yahoo says Microsoft search providing 31 percent of revenues: Report

Bloomberg is reporting that a U.S. Securities and Exchange Commission (SEC) request has resulted in Yahoo disclosing on December 9 that 31 percent of its latest quarterly revenues are attributable to the search deal it forged with Microsoft.

As the December 10 Bloomberg report noted, that's substantially more than the 10 percent of sales Yahoo had publicly claimed that it was earning from the Microsoft pact.