Maximum price per ticket, per level

[Ristiina FC]

Just as there is a maximum number of spectators per level, is there a maximum price per ticket?

I'm at level 7 and get prices :

21$ League
22$ Champion's League
20$ Cup
17$ Friendly.

Every time I play a match, I increase the price but I sail a little on sight, cause i don't know what is the maximum...