Hi Sreya,

Are you enquiring about the JEE Mains results?

I can help you in calculating your rank from your percentile, the formula for which is as follows -

Rank Predictor = (100 - percentile)x (total number of students who appeared for the exam in that session) / 100

However, there is no formula that helps you calculate your marks on the basis of your percentile as the percentile is not calculated on the basis of your score but the total number of candidates who gave the exam along with you. 

Hello,

I would like to tell you that you cannot calculate percentile into marks as percentile depends upon the number of students who appeared for the exam and how many students have less/more marks than you.

It is not related to marks.

You can calculate marks from percentage but not from percentile.

Hope this helps and all the very best!