that is also a logic and possible way.
I didn't talk about price influence in my theory, but ofcourse I am aware it has a factor in the calculations as well...
In my perception of 'fanbase' you can't realy call it last game's attendance. I see fanbase as something that changes over the season, but rather slow and buffered. Meaning that if you lose 1 game, your fanbase will not imediatly go down, it might even still rise if, say, your last 5 games whjere 4 wins and your last game a loss. Last game's attendance on the other hand IS influenced by a win or loss of the game directly in front of it...
I can see it beautifully here, my arena almost sells out if I won the previous game, but if I lost, the bleachers are considerably less filled, next time, if I won again, the same amount as before returns to te bleachers. But over time that 'same amount' rises slow but steady. That rise is a result of what I would call your fanbase. And I am strongly in the belief that this is a calculation over more than just 1 or a few games. Maybe it is influenced by the winpercentage of all season's games, or the last 10 games, or maybe even based on the place you are in in the rankings.
Fact is, there are many many factors, your division, your prices, your PR manager, wheter you won or lost last game, your season ticket holders, your 'fanbase' , your oponent and maybe more that all influence your crowds, so it will be prety hard to get a decent look at the right theory.
Which ofcourse makes it all the more exiting.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.