I suggest following:
1) rename Season Tickets Holder to Fanclub Members, Fanbase or something like that, because it describes better what the number says. There are no Season Tickets Holder at all, because Season Tickets Holders usually pay for Tickets at the beginning of the season
2) show actual number in every moment instead of number at the beginning of the season so that we can better understand behaviour of this number during the season, especially for demoting and promoting teams and also to undestand better influence to attendance