JazzG Man in learning how transfer system works shocker.
This inflated Garnacho fee keeps doing the rounds because people just don't like or rate him, and completely ignore the reality of the transfer market. He is still young, certainly young enough you can still factor potential into his value for any club that want to gamble on it. He's got some above average attributes. He has decent pedigree. He is likely moving from a club who typically sell players like him extremely well. I'd argue there are no comparators out there going for significantly less that what he will move for.
Clubs are just more awash with money than they've ever been. Not all of them spend sensibly for a variety of reasons.