At the beginning of the Fall Semester in 2019, Ridgemont High School had a student population

At the beginning of the Fall Semester in 2019, Ridgemont High School had a student population of 1,875 students. During the Christmas break, 77 students transferred to other schools and 6 students transferred to Ridgemont High School from other schools. As a result of these changes, by what percent did enrollment at Ridgemont High School decrease? Show your work.