The price is too expensive for a player whose quality has declined, I don't think European teams will be interested in signing Lukaku if Chelea is too expensive, for the Saudi Arabian team it is possible because the Saudi Arabian team has quite strong finances.
Now it is reported that Napoli are interested in recruiting Lukaku, but Napoli's offer price is still below what Chelsea wants.
I think that however Chelsea maintains Lukaku's price it will be detrimental to them because they don't want Lukaku's services anymore so whether they want to or not they have to sell him so that he doesn't become a burden on the team.
Chelsea will definitely sell Lukaku for less money. The €38 million demanded is certainly negotiable and I think it's pretty certain that he will leave the club, but I doubt that he will leave Europe, as there are now a lot of players who regret this move. Even if they get a lot of money for it, it's usually not worth giving up european-living-standards. Lukaku is still a very strong striker and he played well at Rom. He will definitely find a club that wants him.