The majority of YouTube's advertising revenue goes to the publishers and video producers who hold the rights to their videos; the company retains 45% of the ad revenue. In April 2017, YouTube set an eligibility requirement of 10,000 lifetime views for a paid subscription. According to TubeMogul, in 2013 a pre-roll advertisement on YouTube (one that is shown before the video starts) cost advertisers on average $7.60 per 1000 views. On April 6, 2017, YouTube announced that to "ensure revenue only flows to creators who are playing by the rules", it would change its practices to require that a channel undergo a policy compliance review, and have at least 10,000-lifetime views, before they may join the YouTube Partner Program. The video was retracted after it was found that the ads had been triggered by the use of copyrighted content in the video. Google stated that it had "begun an extensive review of our advertising policies and have made a public commitment to put in place changes that give brands more control over where their ads appear". https://mh.xyhero.com/space-uid-121468.html