Facebook had warned of a decline in its revenue, as it reduced the number of ads in the users' feed, and worked on making video ads as its huge focus. Despite this shift, the company posted 47% growth in its revenue, with ad revenue up 49% to $10,142MM. Take a look at this graph http://alph.st/bbd28012
Interesting article on FB:- https://www.bullmarketboard.com/blog/2017/11/01/facebook-back-foot-despite-profit-growth/