Hello Dear,

You can calculate your percentile from the link below. JEE Main percentile and normalization process have been prescribed by NTA (National Testing Agency), the conducting authority of JEE Main. Percentile Score is the score based on the relative performance of candidates who have appeared for the exam. To calculate a percentile score, the marks secured are converted into a scale ranging from 100 to 0 for each session of examinees. Follow the link for more information:

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

You can also take helps from the link to predict college which you can get on your percentile:

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Good Luck