Aggregation in loop

Hi everyone,

Can you help to achieve ‘Balance’ using Knime. I tried aggregation method but it after loop it, but it aggregated single column. Is there a choice?

| Lag | Plant | Item | Date     | Fcst | SOH | Balance |
| 1   | X     | A    | Aug 2024 | 0    | 200 | 200     |
| 1   | X     | A    | Sep 2024 | 5    | 0   | 195     |
| 1   | X     | A    | Oct 2024 | 200  | 0   | -5      |
| 2   | X     | A    | Aug 2024 | 5    | 200 | 195     |
| 2   | X     | A    | Sep 2024 | 5    | 0   | 190     |
| 2   | X     | A    | Oct 2024 | 100  | 0   | 90      |

Thank you :slight_smile: