Maybe he didn't count bundled copies.
Then why are the bundled copies mentioned in the parenthesis? Here, let me remind you:
Actually, this fucking thing makes zero fucking sense. OK, so we have Avadon 1 with heavy bundle interest. I'm not sure what exactly he means. Percentage of bundle copies in the sales, I guess. So Avadon 1 costs 10 bucks, sells 60 thousands, nets 300k. That sounds about right.
But then we have Avadon 2. It sells 10k copies less which is a 20% loss, but suddenly the profits have sunken in thrice. 300%! And, with less bundle interest, that means that the bigger part of those sales should've had the fuller price. That number just doesn't make sense - even if steam & taxes take out the half away, 50k copies should net you 250k, not 100.
Another thing is that all these numbers are inconsistent with the steamspy. Which means that this entire chart is carefully doctored to depict whatever it needs to depict. Or, to put it simply, that it's bullshit.