Subtraction in PowerBi matrix Aggregation

[apollo89]

Hello,

I have a table with the following contents:

Header Subheader Subheader2 Amount
     A            B                C               10
     A            B                D               20

This is then represented as a power bi matrix:

Header   Amount
     A          30
       B        30
         C      10
         D      20

I have a situation which requires the aggregation to roll up to a subtraction rather than an addition. So the value of B should be C - D (10 - 20) instead of (C + D) without reversing the sign of D. So the matrix should look like:

Header   Amount
    A           -10
      B         -10
        C        10
        D        20

Any DAX measure I can create to achieve this?

[v-yulgu-msft · Accepted solution]

Hi @apollo89,

I'm afraid such a requirement cannot be achieved now. As the values shown in Subtotal row are always aggregated by SUM by default. We are not able to change this behavior now.

Regards,

Yuliana Gu