Hello,

The National testing agency has given displayed the joint examination results in percentile this year so the total score mentioned is the total percentile.

To find out the rank is difficult as it depends on various factors and also the number of students attempting  JEE main april exam too. But if you want to find out the predicted rank you can use the below formula

100 - your total percentile score is the percentage  of people ahead of you. 869010 are the number of candidates appeared for Jan exam. So rank formula is (100 - your total score) X 869010 /100. If the number of candidates for April exam increased to 1200000 then your final rank shall be (100 - your total score) X 1200000/100

so the predicted rank will be around 329285 which can change in april