| Numierical grade | Letter grade | Grading point |
| 80% and above | A+ | 4.00 |
| From 75% to less then 80% | A | 3.75 |
| From 70% to less then 75% | A- | 3.50 |
| From 65% to less then 70% | B+ | 3.25 |
| From 60% to less then 65% | B | 3.00 |
| From 55% to less then 60% | B- | 2.75 |
| From 50% to less then 55% | C+ | 2.50 |
| From 45% to less then 50% | C | 2.25 |
| From 40% to less then 45% | D | 2.00 |
| Less then 40% | F | 0.00 |