Alisson to Liverpool, Jorginho to Chelsea, Dybala to Juventus, Kovacic to Madrid.
It may not look big deals on the scale of how much PL clubs can pay, but with context of Italian clubs finance. Remember Palermo whom sold Dybala to Juventus? The club had been refounded in Serie D after serial relegation both via result on the pitch and issue with their finance.
Some circumstances they just make up crazy price to keep the players. Other time they meant the valuation for sale when concrete interest shown by potential buying clubs.