Hello Aspirant,

The actual JEE Mains rank is difficult to predict from your percentile because it changes every year depending on a number of variables, including the number of candidates that showed up for your session, the difficulty of the paper, and the number of seats that are available at various universities.
The number of questions that are correctly answered is not represented by percentile scores. When comparing a student's performance across multiple test sections, percentiles are helpful.

You can refer the below link for more details:

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

ALL THE BEST