The GPA values in the Student List are those that are run and stored via the Grade Average Calculation.

To run the Grade Calculation, navigate to:
  1. onRecord > Performance > Grading > Calculations
  2. Click Calculate
  3. Select your School Year, School Level, Term, Grade average calculations to include, Rank calculations to Include, Students to Include
User-added image
  1. Click Generate

Once the Calculation is run, the GPA can be pulled into this list providing the GPA Column has been added to the List.