can somebody help me calculate my average grade?

hey guys

i was wondering if there is someone here to help calculate my final masters grade cause I'm not sure how to do it.

so due to covid instead of calculating the score all 180 credits they decided to take our best modules up to 120 credits.

here what I achieved:

Module 1: 80 - 15 credits
Module 2: 78 - 15 credits
Module 3: 72 - 15 credits
Module 4: 75 - 15 credits
Module 5: 70 - 15 credits
Dissertation: 70 - 45 credits

Total: 120 credits

I hope I managed to get a good grade. officially the results are going to be released this week

If each module is weighted evenly in the calculation then average is 74.17

If the modules are weighted like their credits then 73.13