I’m all for taking a close interest in club finances but seriously as a football fan, days like yesterday don’t come around often. Enjoy the moment!
On your point, you’ve significantly overestimated the income from 5,000 Rangers/Celtic fans minus policing and possibly underestimated the Marvin transfer. Also, Robinson has mentioned a hundred time that Trevor Carson cost £10k. As for cup revenues (publicly available), worth bearing in mind a fair whack will rightly go on player/staff bonuses.