What is Robert Downey Jr's salary in Avengers: Doomsday and Avengers: Secret Wars?

Some time ago, everyone was surprised by the announcement of Robert Downey Jr.'s return to Marvel, now as the villain Doctor Doom, and that of the Russo Brothers as directors of the next films Avengers: Doomsday and Avengers: Secret Wars. As you might imagine, the money the studio will pay them is significant.According to Variety, sources reveal that the studio paid around US$80 million for Anthony and Joe to direct the films, and a "significantly higher" amount for Downey Jr., without specifying the salary.
Journalist Jeff Sneider went a step further. In his newsletter, he claims that Downey Jr. will earn $50 million per film, but that number could double based on box office sales. Something similar happened in Avengers: Endgame, when the actor's salary went from US$40 million to US$75 million based on the film's billion-dollar performance.
In other words, my friends, the man is going to make a lot of money!!