You give them way too much credit. The football club is actually a tiny business. Football itself is a multi billion pound industry but Middlesbrough FC is tiny. It's run by one bloke, has about £30m turnover and employs only 200 people. It is clear that the way they run things like the club shop and ticketing is very amateur.Your calcs = back of a fag packet
The clubs calcs = years of data on consumer habits / income / expenditure etc
I would be shocked to find out that the ticket pricing model is more than just a spreadsheet knocked up by the finance team. There definitely isn't a team of analysts like Amazon or Tesco would have working on complex models.