At this point they are so rich that I wouldn't be shocked if they could build a whole another galacticos level of team because most players are cheaper because of pandemic and they have enough money to buy multiple.
If we talk about the wealth owned by Real Madrid they have very much money. According to
AB-TC, they had revenue of € 750.9 Million last year. With this amount, they can afford to buy Mbappe and Haaland at one time. However, if we have talked about the player's contract with the club and also the wishes of the player, and the terms cannot be fulfilled, this may not happen.
Don't forget, Clubs owner of the player can also have an important role in the transfer process, they will not sell their potential players cheaply. Even though a player is estimated worth 50 million, the club could have kept him by only accepting an offer of 80 million+. That's business in football.
Club revenue for the 2019/20 season was down 13% (minus € 106m).
The situation in the club is stable, according to data from June 30, 2020, the state (net assets) is estimated at 533 million euros, and the treasury at 125 million euros.
In the 2020/21 season, the club expects to earn 617 million euros, which is 300 million euros less than the previous year before the pandemic.
After the measures taken, spending was reduced and the impact of the pandemic on the club in the 2019/20 season resulted in the conclusion of Madrid's financial year with a balance of 300,000 euros.