Grade | Score (%) | Assessment category |
0 | Up to 30 | Not recommended |
1 | 31 - 40 | Very poor |
2 | 41 - 50 | Poor |
3 | 51 - 60 | Moderate |
4 | 61 - 70 | Good |
5 | 71 - 80 | Very good |
6 | 81 - 90 | Excellent |
7 | 91 - 100 | Best |