In this case, 630 students purchased a yearbook out of a total of 875 students.
To find the percentage, we can use the following formula:
Percentage = (Number of students
who purchased a yearbook / Total number of students) * 100
Let's plug in the values:
Percentage = (630 / 875) * 100
Calculating this:
Percentage = 0.72 * 100
Percentage = 72%
Therefore, 72% of the students at North Middle School purchased a yearbook. :)