It would be difficult to tell you the marks on the basis of your JEE Main percentile. Based on this percentile your probable rank will be 483,443 - 548,443 and your probable category rank range will be 38811 - 42811, You may be eligible for JEE Advance.

NOTE: Rank Predicted is on the basis of the expected total number of students i.e. 1152650 appearing in the JEE Mains April Session.

Good Luck!