Hello aspirant, 

Your percentile score can't be predicted even if you know your marks, because percentile score is a normalized one.it depends on the number of students appeared in the same session as you with raw score equal to or less than that of you which is an unknown quantity.

I think you understood. 

To know about jee main normalization procedure, go to

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-normalisation-process-how-scores-are-calculated/amp