Your on level 3 so ticket prices for you should be..LG, $4-5, Cl 7-8, Cup 6, you may get away witu a little more, try the higher amount first then if you play a match and you don't get full attendance then lower the amount abit till you get full attendance. As for you stadium keep upgading the rest of the things then when complete add more size, I personaly, think its easier to upgrade stadium size rather than extra seats as you can just let it run in the background for about 16 days or so.