GamePass deals are fixed price, the "full production cost" is not an exact truth. For most indies the deal price represents an over shoot over costs, or just a

GamePass deals are fixed price, the "full production cost" is not an exact truth. For most indies the deal price represents an over shoot over costs, or just a large percent of cost. This is logical: no one ever shares their internal production costs. Like any business you treat business partners at arm's length. Source: gamedev who has heard from serveral devs who got offers.