Weirdly enough for some reason the ratio between ad impressions and views are not consistent from month to month nor is it a ratio of 3's for each ad impression on the page.
Based off of the stats from my Dashboard on the site, I can't really find a collation between the views and ad impressions, they're all over the place.
So when it comes to ad revenue, I recommend people focus on the number of ad impressions rather than views, since impressions are what earns the revenue.