Hi,

To determine the percentile, a complete JEE score is required and not just for one subject as the total score is considered for the calculation of overall percentile. Thus, it is not possible to determine you percentile without the complete score.

For more details, you can refer to this link:

This link will provide you a rough idea of your percentile on the basis of you score and considering the difficulty level of the exam for your shift.

I hope this helped.