Hello Team,
I'm trying to rank the performance score of each employee based on their department to identify if they belong to Top 30%, Mid 40% & Bottom 30%. See sample table below.
| Name | Dept | Score | Ranking |
| John | AB | 2 | |
| Mike | BC | 4 | |
| Karen | AB | 5 | |
| Dave | BC | 2 | |
| Dawn | BC | 10 | |
| Jacob | BC | 8 | |
| Ryan | AB | 6 | |
| Selena | AB | 7 | |
| Aileen | AB | 3 | |
| Jeremy | BC | 4 | |
| Steve | BC | 8 | |