I don't really like including marketing costs in this to begin with. First of all the number varies wildly in terms of how much is spent on marketing. Secondly, I consider marketing a part of development, otherwise why aren't you putting dev costs into this. It would bring the number each publisher gets way down. The reason is dev costs vary wildly just like marketing.
Just pile the $36 into the publisher pot. Up to them what they negotiate to pay the developer so that will vary as you say, as will marketing. That diagram is perhaps a simple example for a typical big title and reflects the amounts usually spent on marketing.it wouldn't accurately reflect all titles