Hello shivdutt , CGPA is a common marking scheme in many universities and colleges , also there are various  websites to calculate CGPA to percentage and it's almost same for every universities but if you specifically want for dbatu , follow this link
https://gauravpatil97886.github.io/dbatu-cgpa-to-percent/

Hello,

For DBATU (Dr. Babasaheb Ambedkar Technological University) :

• 7.49 CGPA is usually not rounded off to 7.5. It stays as 7.49 .

• To convert CGPA to percentage, use this formula:
  Percentage = CGPA × 10 = 74.9%

No rounding off is done unless officially mentioned by the university.

Hope it helps !

Hello,

You describe that our DBATU CGPA is 7.49, then your final percentage is going to be 70.30%

For your info, the DBATU uses this formula to convert CGPA into percentage.

(CGPA-0.5)*10

This means, in your case = (7.49-0.5)*10 = 69.9, which can equivalent to 70.30%

I hope it will clear your query!!