With this reasoning Im thankful you didnt end up owning the club after all.
Im sorry, but we are going to write down some math and then conveniently forget about sponsorships, food and drink, merchandise, extra events and more?
You've already outlined 50m per season in ticket sales. Throw in million in food/drink increases. We already have one sponsorship from castore for 13m more than last year(and there will be more). Then you have other events, which bring in 1-5m per night for Tottenham for example. Do 10 nights a year of that and you have another 10m minimum.
Ticket sales: 50m
Castore sponsorship: 13m
Events: 10m
Food/drink:?
Already thats 73m + whatever increases in food/drink/merchandise/other sponsorships.