The grade point is the evaluation of each course according to the grade received on a four-point scale. “A” carries four points, “B” three, “C” two, “D” one, “F” and "AW" zero per credit hour.
The grade point average is the total number of grade points divided by the total number of credits attempted. Courses dropped before the last day to drop a course are not counted as part of the total number of courses attempted for the purpose of computing the grade point average. Transferred grades are not calculated into the Lyon College GPA.
The following is an example of how the GPA is computed for a semester:
| COURSE | SEMESTER CREDIT | GRADE | GRADE POINTS |
| ART 101 | 3 | B | 3 times 3 = 9 |
| CHM 220 | 4 | B | 4 times 3 =12 |
| HIS 201 | 3 | C | 3 times 2 = 6 |
| PSY 101 | 3 | A | 3 times 4 =12 |
| TOTALS | 13 | = 39 |
Grade Point Average = 39 divided by 13 = 3.00