Hi Prashant,

You cannot convert percentile to marks. You can only get your approximate rank from your percentile. You can calculate your marks based on the answer key & your response sheet released online. I would suggest you calculate your marks based on this and then go for cutoffs.

To know the colleges you are eligible for you can use the college predictor,

https://www.careers360.com/mht-cet-college-predictor

Good Luck!!