In an interview from 2013 Perez explains why Neymar would’ve cost Madrid at least €150m. Focus on his reaction at Bartomeu’s calculations (2:10). According to Catalan Pinocchio, for Barca it was only 57m.

https://x.com/SrNaninho/status/1845900998012784749

Some Florentino's answers:

"Well, let me start by saying that Neymar is a great player that we've had in our objectives for a number of years. His club, Santos, contacted us to let us know his contract would end in 2014 and we spoke. But in the end we thought that his signing would damage our ecosystem of negotiations. And well, congratulations to Barca for signing him."

"Well, I don't want to talk about the money. But part of the player belonged to Santos, part of him was owned by a fund (40%), part of him owned by his family, and then a small remainder left over. This type of transfer does not fit with our policy."

[The question about Neymar only costing Barca 57m, but would have cost RM 150m.]

"Clearly we're talking about different things. I'm telling you that it would cost us 150 million, in total, paid to all four parties that owned the player. And like I said, this just doesn't fit in with our policy of transfers."

"I'm sure that Barca's accounts will be clear. According to the way we proposed to do it, the numbers didn't add up. Barca moved the figures the way they could, moving around the transfer price, the player image rights, etc. For us it just didn't add up.

After that "defeat" Florentino bought Gareth Bale instead. The Welshman contributed heavily to 4 Champions Leagues. Neymar won 1 CL for Barca, and was knocked out 3 times in the quarterfinals! Then, he decided to be the "best" player in the world in France

P.S. Don't believe in Haaland's official transfer fee. I've heard journalists close to the club hint that Madrid would've had to go against their own principles, if they'd wanted to sign him from Borussia. They've even mentioned legal problems.