hi,

I am taking you have got 85 score out of 300. see jee main exam has conducted for multiple sessions and percentile would be calculated separately for each session considering the difficulty level of papers, number of participants etc. however do mention in which date and session you have participated in the jee main exam. based on score analysis your percentile would be 93.4712312797351 - 94.7494792463808 .

you may calculate your rank from below link :