Hello Aspirant,

It would be difficult to predict your exact rank & qualifying score. This score seems enough to qualify the exam.

100 - your total percentile score is the percentage  of people ahead of you. 874469 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.

Using the formula (100-your percentile score) X 869010 /100

Your probable rank will be 1,46,263.

You can also check your admission possibilities to use JEE Main college predictor tool given below.

Good Luck!