According to Forbes, Joker is expected to pass Man of Steel‘s $291 million domestic gross this weekend, and pass $600 million at the international box office (without any help from China) for a total close to $900 million by Sunday. As the site noted, when — not if, when — Joker passes Spider-Man: Homecoming‘s $880M and Spider-Man 3‘s $890M it’ll be the 8th biggest solo comic book movie ever (unadjusted for inflation).
Article source: https://www.cinemablend.com/news/2483689/joker-is-about-to-hit-another-huge-box-office-milestone