You can't score Your Percentile on the basis of Marks because Percentile depends on a lot of other factors too which are equally important. Because Students are less this time and also Paper Variation also affects a lot. So One can't decide easily the percentile on the basis of marks.

Your Overall Percentile is: 99.37 - 99.57

Your Predicted Rank is: 3782 - 5432

You will score good percentile as you have scored very good marks.

So Let's Wait for the Result and Hope for the Best You will score well.

ALL THE BEST :)