How do I increment count based on a column?
Sample
| Col A | Col B |
| 70000207 | 111113 |
| 70000218 | 111012 |
| 70000221 | 111012 |
| 70000232 | 111012 |
| 70000234 | 111012 |
| 70000239 | 111012 |
| 70000240 | 111012 |
| 70000242 | 111012 |
| 70000245 | 111012 |
| 70000245 | 504083 |
End Result - Count increment based on column A above.
| Number | Col A | Col B |
| 1 | 70000207 | 111113 |
| 1 | 70000218 | 111012 |
| 1 | 70000221 | 111012 |
| 1 | 70000232 | 111012 |
| 1 | 70000234 | 111012 |
| 1 | 70000239 | 111012 |
| 1 | 70000240 | 111012 |
| 1 | 70000242 | 111012 |
| 1 | 70000245 | 111012 |
| 2 | 70000245 | 504083 |