This is percentile score of your's sister,NTA hasn't declared raw score yet.Total percentile score of your's sister is 24.19 which indicates that 24.19% candidate score equal to less than your's sister score in that particular session.There are 8 session in which1st phase of jee mains exam held.Also score in individual subject is percentile score not raw score.As this is percentile score it only tell us about relative performance of candidate in a session.

You can rough idea about your's sister rank using this formula:Probable Rank = (100- NTA percentile score) X 874469 /100.

For assurance wait till NTA declares raw score and cutt off marks.

Still . your's sisters has one attempt.Sge has plenty of time in it.

BEST OF LUCK FOR NEXT EXAM!