Hi there,

You can easily calculate your rank using this steps,

100- your total score multiplied by 869010/100.If more number of students are appearing for Jee mains in April then divide it by 1200000.ie, 1200000/100.

Your predicted rank is 2,32,632

For JEE advanced above 85% is seen as an decent score for it.You also have a chance to write Jee mains  in April 2020, for which registration will start on February 7th.

Hope this will help you.

All the best.Thank you