I want to write a measure which filters the data by multiple columns.
I want a cumulative total for a product over the course of twelve weeks and then I want to have a measure which shows the performance of an individual sales person to match against the performance of the whole team.
| Week Number | Product | Value | Sales Person |
| 1 | Apples | £ 10 | Annie |
| 1 | Apples | £ 10 | Jon |
| 1 | Apples | £ 10 | Tom |
| 1 | Apples | £ 10 | Jon |
| 1 | Apples | £ 10 | Annie |
| 1 | Apples | £ 10 | Jon |
| 1 | Apples | £ 10 | Dave |
| 1 | Apples | £ 10 | Tom |
| 1 | Apples | £ 10 | Jon |
| 1 | Apples | £ 10 | Annie |
| 2 | Apples | £ 10 | Dave |
| 2 | Apples | £ 10 | Annie |
| 2 | Apples | £ 10 | Tom |
I use the following dax formula to get the cumulative total
= CALCULATE(SUM('table'[value]) , FILTER(ALL('table'),table[week number]<=MAX('table'[week number]), VALUE('table'[Product]))
what do I need to add to just get the cumulative sales for Dave?
