Hi All,
I want to do a conditional running total column where every row will sum up the last 3 rows including itself.
Please see below example. Request for urgent help.
| BU | Date | Values | Running Totals of last 3 months |
| ABC | Jan'21 | 0 | 0 |
| ABC | Feb'21 | 1 | 1 |
| ABC | Mar'21 | 1 | 2 |
| ABC | April'21 | 1 | 3 |
| ABC | May'21 | 0 | 2 |
| XYZ | Jan'21 | 1 | 1 |
| XYZ | Feb'21 | 3 | 4 |
| XYZ | Mar'21 | 0 | 3 |
| XYZ | April'21 | 1 | 1 |
| XYZ | May'21 | 0 | 1 |
| OPD | Jan'21 | 4 | 4 |
| OPD | Feb'21 | 0 | 4 |
| OPD | Mar'21 | 3 | 7 |
| OPD | April'21 | 1 | 4 |
| OPD | May'21 | 0 | 4 |