"The Witcher 2: Assassins of Kings sold something around 200,000 units on Steam, CD Projekt RED's action/RPG sequel sold more DRM-free units on GOG.com than all other digital distributors combined. "
that's the opposite of this source:
"Roughly 240,000 copies of The Witcher 2 were sold across all digital distribution platforms between its May 17 launch and October 30, CD Projekt revealed. Steam accounted for over 195,000 of these (around 81%), while Good Old Games rung up "approximately" 35,000 (15%)."Source
so which one is it?