24 Million when they signed him is probably equivalent to 30 Million today with the massive year on year inflation in football..
So if the player held his value we would probably be paying 30+ million.. Then when you take into account the 6 or 7 million in wages they've probably paid him on top of that United are not 'getting their money back'...
22 Million in todays money is by no means excessive for a player of his standard, who's proven in the premier league and is exactly what we need.
Some people are making out he has hardly played since joining united.. when in reality he has 47 appearances in the last 18 months (More that McCarthy, Gibson and Besic), granted he hasn't had much game time this season but he featured regularly last season so it is only really 4 or 5 months of limited game time. It might even work in our favour having some fresh legs for the seasons run in as I expect Gueye to tire due to the AFCON.
IMO 22 million is an extremely fair price for the player we are getting, people need to get out of the mind set that 22 million is a big fee in todays football, it's not, it's the going rate for a good Premier League level player, which he is proven to be!