What to mention in Aggregate % as a student in final year

Hi ma'am,
I am a final year student and i have two semesters left till I finish graduation. My previous semester marksheets have both cgpa and marks obtained by me out of total. I have asked my university for the conversion formula and am waiting for it. But I wanted to ask if I just add my marks obtained and divide it by total and put that in aggregate % or do I wait for the formula?