But is there really?
The key thing that post omits is anything about the fee. If he wants to go fine, then it's up to Leipzig to pay the going rate for a young English forward. That's 30m without doubt. Pay up or pipe down.
Meh. Depends on the details. Everton sell a 20 year old with 15 EPL appearances for 20m-ish and then add a sell-on clause to bank on his future. If he shines, a big club pay an obscene amount and Everton gets a bigger cut on that.