Arguing about numbers is just too boring.
You've only included catering in the above.
Add Match-Day programs and Merchandise (not including clothing).
The bottom line is, there is a big loss from non-returning season ticket holders.
£120,000.00 (conservative) £175,000.00 (average) per 1000...
Then add the profit made from the pies, beers, soft drinks, hot drinks, crisps, chocolate and merchandise. That could be roughly £5.00-£10.00 per game p/p which = a further £115.00-£230.00 loss p/p per season.
1000 less season tickers sold = approx £115,000.00 - £230,000.00 per season on...