I tried to verify this in the Game Manual and here is what I got:
The revenue from ticket sales to playoff and relegation games is split: 2/3 for the home team and 1/3 for the visitors
Sigh, if only I can ask the same question.... It has been 2 seasons since I missed out on the PO :(
All the best to Damientor in his PO who managed to break the 'unbreakable' top 4 of Great 8. Really a magnificent feat.