How is the box office counted? That is, from the beginning of the film to when it ends,

The approximate calculation is as follows: the box office is from the box office before the premiere to the next movie. The first part: The networked cinema is the data displayed in the computer of the information system. Part II: Tickets of non-connected cinemas are counted manually, which generally accounts for 10% of the computer box office. This is the third part of the estimate: the box office before the premiere. Part iv: IMAX box office)