Rotten Tomatoes is one of the most popular movie review aggregators on the internet. Critic and audience opinions are tallied to determine whether a movie is "fresh" or "rotten." If a movie is considered "rotten" by Rotten Tomatoes' rankings, then most would assume it won't be a success at the box office.
Source:https://www.cbr.com/box-office-success-rotten-tomatoes/