Cumulative sum by date by category

[aftabansari2512]

Hi,

I have a table that conatins data in the following format

Date                     Category                     Product Ids 

01-12-2015               A                                 12

01-12-2015               A                                 13

01-12-2015               B                                 17

02-12-2015               A                                  19

I would like to have cumulative sum of product per date per category. Something like this:

Date                        Category                 CumulativeSum

01-12-2015                  A                                 2

02-12-2015                  A                                 3

01-12-2015                  B                                 1

How can this be achieved via calculated column? Any help would be appreciated.

[Greg_Deckler]

Check out the running total patterns here:

http://www.powerpivot-info.com/post/109-dax-running-totals

and here:

http://www.daxpatterns.com/cumulative-total/