You can't score Your Percentile on the basis of Marks because Percentile depend 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: 99.21 - 99.41

Your Predicted Rank is: 5268 - 6918

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

ALL THE BEST :)