Anybody else feel that revenue is well down in the last 2 weeks?

So to put this quite simply my revenue is down by about 40% and still dropping compared with about 3 weeks ago despite hardly any change in the number of impressions received. (am not going into specific numbers here but if anyone from Unity wants to check my account then these numbers will bear out).

There was an issue about 2 weeks ago where dashboard stats were not updated for a day or 2 and I noticed the drop happened immediately after this was resolved but of course I'm not sure if the 2 things were related.

Really want to know if anyone else is having the same/similar experience at the moment?