With marketing for big titles like Grand Theft Auto V and Destiny reaching over $100M, and dev costs going up and up, we can be pretty sure that Microsoft ate through $335M in costs in the twelve months through June.
We know that in 2014 through May Microsoft spent about $35M on TV ads in the US alone. The holiday period is much more costly for game ads. That means costs in the US, for TV alone, likely broke the $100M barrier. Globally the firm likely spent much more, leaving it with less than $200M for everything else.
Developing backwards compatibility isn’t cheap, and neither is putting together the hardware needed to run the servers that let the Xbox One go online.
Until the firm reveals something that suggests otherwise that’s the best supposition to move forward on.
Despite an estimated $36.50 gross profit on each console it makes, each Xbox One likely loses money for Microsoft.