They lose money on every dollar they invest overall in xbox as a business. They pretty publicly documented this (which is unusual for Microsoft).

Overall gaming is a dying business. Everyone has a pretty powerful smartphone in their pockets, and there are so many platform vying for attention. AAA gaming is becoming a smaller fraction of the overall gaming pie, so I would expect prices to go up. Mobile gaming usage is up from 42% -> 55% from 2017. Even based on analysis from Steam's data, Indie games are 48% of sales, vs 24% in 2018.