Does anyone know about some study (or simply has some hints) regarding how different kind of seating should be divided in percentage?
in my eyes this question isn't easy to answer, because you could "fix" wrong correlations easily with a good price so that the difference betwenn the perfect contribution and the not so perfect is pretty small and this way you don't find out which is the perfect thing.
The main bias in this is your situation in competion, if you had a very succesful team, bleachers would earn you more money then VIP lounges, because you could sell the cheap places pretty good. The more games you loose, the expensiv seats become more important because their visitors also come after a loss.
So i personally make this as a spontaneous decision, often depending on how near i am to the maximum price(if i ask for 15$ for a bleachers thats 2/3 of the price scale because prices go from 5 to 20)