What’s the source mate?
Get the wages shifted and hope he achieves some level to either come back or be shipped out next year
The news site is pro government and I don't want you guys to give them some more hits but here is the link if you want to check for yourself. https://www.yenisafak.com/spor/klaassen-besiktasta-3356985
Some other sources say loan fee is per year, so it could come down to (1.5mil + 2mil) * 2 = 7 million for Everton.
By the way, both Talisca and Aboubakar received their wages from Besiktas with their loan deals, and their clubs were paid an extra loan fee. Talisca's loan was in 2 year term and Benfica received 2 million per year.
And please, keep in mind that Turkish media goes nuts in every transfer window, spreading fake news to keep people reading. Take every news with a big grain of salt.