Hello Sandeep,

This is the first time that MHTCET is declaring results on the basis of Percentile. Unitll previous year the cutoffs of the colleges were on the basis of the marks of the students who opted for that particular college. From percentile, you can predict your rank using the below link

Https://engineering.careers360.com/articles/mht-cet-result

Now after knowing your approximate rank and your expected marks which you might have already calculated using the answer key released earlier, you can use the below link to know whether you are eligible to get admission to CS branch at COEP. Last years Cutoff for NT-3 category for CS branch at COEP is 157. 

Https://images.careers360.mobi/sites/default/files/MHT-CET-2018-Cap-Round1-Cutoff.pdf

Hope this is helpful.