I don't know exact numbers. It was disappointment as PoE1 did really well, and PoE2 got much bigger budget hoping for a bigger return on the investment. It made it's money back eventually, that I know for sure, so it didn't fail, but wasn't a massive profit either, unless pre-Avowed hype will boost sales.
Originally Posted by Saito Hikari
Yeah, I'm pretty sure you already know that they won't go back to the PoE series until they're sure they figured out why PoE2 wildly performed below everyone's expectations. For now they've pivoted over to Avowed, the first person game taking place in the Pillars universe.
I seriously doubt that Avowed is a kneejerk reaction to PoE2 not succeeding - I doubt those decisions are made overnight, and Feargus (Obsidian CEO) has been talking about Skyrim-in-Eora, way before PoE2 was out. You are more or less correct about PoE3, though.