Take all of your courses for each
unit*score- sum off of that
how many courses you have next year/semester whatever your goal is - how many units is that * grade. add it all up and divide by total units
excel would actually be useful. Ill just upload something for you
https://docs.google.com/spreadsheets...it?usp=sharing
( Just change the values that aren't bold. Those are the formulas)
Assuming you are first year with 30 units and overall 6 GPA, you will need an overall 8 GPA next year at 30 units