Ok, here is something:
I set a scedule on a route, ticket price and IFS Profile. I updated (blue box) reloaded the page (blue box gone) and the loadfactor was 13k/13k in Eco and 0/2k in Busines Class. I didn't check the Supply/Demand ratio so I decreased the business class ticket price, updated (blue box) and reloaded the page later (blue box gone). After that the loadfactor was 8k/13k and 0k/2k. I did not change the ticket price for the eoc but the ticket sales decreased by 5k.