| Scale | Scale 2 | Grade Description | US Grade |
|---|---|---|---|
| 4,000 - 4,000 | 97,000 - 100,000 | Excellent | A+ |
| 3,500 - 3,990 | 93,000 - 96,990 | Superior | A |
| 3,000 - 3,490 | 89,000 - 92,990 | Very good | B+ |
| 2,500 - 2,990 | 85,000 - 88,990 | Good | B |
| 2,000 - 2,490 | 80,000 - 84,990 | Satisfactory | B- |
| 1,500 - 1,990 | 75,000 - 79,990 | Fair | C+ |
| 1,000 - 1,490 | 70,000 - 74,990 | Pass | C |
| 0,000 - 0,000 | 0,000 - 69,990 | Fail | F |