Why is buying from GoG so incredibly cheaper?

Doesn't Larian get 100% of the money when buying from the Vault?

So if I buy from GoG, Larian only receives $27, yet they are selling the game for $51 at the Vault - makes no sense! They could price the game at 25€ on the Vault and still make more money than from GoG/Steam.

Last edited by thesisko; 30/07/13 01:16 PM.