I bring one example with screenshot:

Suitable ticket price-ticket-price-1.jpg

Suitable ticket price-ticket-price-2.jpg

If I calculate club lvl and go with 1.5 or 2x then league ticket price is 7 * 1.5 = 10.5 or 7 * 2 = 14 or (800 - 336) / 40 = 11.6 [(max win league bonus - per league match revenue) / max attendance]

Based on league ticket price I always add +1 for CL and Cup [as screenshot], its work for me all the time; this time its not working with one of my academy club but working with another academy club.