how to interpret percentile rank
Interpreting Norm-Referenced Scores Percentile Ranks Percentile ranks, which range from 1 to 99, are commonly used for reporting test results to students and their parents/guardians. You may interpret a percentile as the percentage of students in a norm group whose scores fall below a given student's scale score.
The first step is to compute the rank (R) of the 25th percentile. This is done using the following formula: R = P/100 x (N + 1). where P is the desired percentile (25 in this case) and N is the number of numbers (8 in this case).