We will get 71,250 for exiting the cup.and being on TV.
Then gate receipts are split as you say but it's 60/40 in favour of the home team. Tickets probably £20 for adults and something like £15 for concessions so call it £17.50 - 875,000.
So our 40% is about £306,250 after the stewarding and £71,250 from the SFA for prize/TV money.
Coming off of that you have VAT to come off x2 because the money comes from two sources (leaves £255,208.33 & £59,375.00) and VAR to be paid for at £4,500
Leaves you with basically £310,000.