"247Sports features two ratings for high school football and basketball recruits: its own in-house evaluations done by its scouting staff, and 247Sports Composite ratings. The Composite aggregates the public ratings for a prospect by the major recruiting services using a propriety algorithm. The Composite combines recruitment ratings from 247Sports' in-house ratings, Rivals.com, and ESPN in order to provide an overall rating for each recruit. The resulting rankings can be considered an industry consensus on the top recruits in the nation."

https://en.wikipedia.org/wiki/247Sports#:~:text=The%20Composite%20combines%20recruitment%20ratings,top%20recruits%20in%20the%20nation.