Hii There,

The JEE percentile score differs from the actual marks obtained or the percentage achieved by a candidate. It assesses a candidate's performance relative to that of other test-takers, indicating the percentage of candidates who scored equal to or less than a specific score in the exam. It can be advantageous to estimate a rank before the official announcement, but understanding the normalization process and tiebreakers employed in determining JEE Main marks and percentiles is crucial.

I hope this answers your question.

Thanks