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Answers and rating deltas for
How to sum rows and then subtract them grouped by?
| Author | Votes | Δ |
|---|---|---|
| Lukasz Szozda | 2 | 0.00 |
Last visited: Mar 19, 2016, 4:59:30 PM
| Author | Votes | Δ |
|---|---|---|
| Lukasz Szozda | 2 | 0.00 |