Matrix table question

[js124]

I've created a matrix table showing Media Division % for 2018 and 2019: 

Instead of a Totals column, which is adding 2018 and 2019 percentages together, I want to have a column on the right showing the variance between 2018 and 2019 percentages.

Is there a way to achieve this?

[Nathaniel_C]

Hi @js124 ,

Create a column in PQ or PBI and use your variance formula, then drop the column into the matrix. Or create a  measure such as DIVIDE(2018-2019, 2018)

Let me know if you have any questions.

If this solves your issues, please mark it as the solution, so that others can find it easily. Kudos are nice too.
Nathaniel

[js124]

Hi @Nathaniel_C ,

Unfortunately it doesn't like it will be as simple as the solution you mentioned. 

I have the columns filtered by Year for 2018 and 2019, with the values being displayed at a percentage of the column totals:

  

And for clarification, I'm just looking for the difference between 2018 and 2019. So if the percentage of digital was 18.70% in 2018 and 16.96% in 2019, I'll like a column in the right to display as -1.74%.

[Anonymous]

Hi

I would make a measure like the one below (you should probably make something more dynamic on the year filtering to make it apply in 2020):

value measure = 

    IF(
        ISFILTERED('Table'[Year]);
        SUM('Table'[Value]) / CALCULATE( SUM( 'Table'[Value]); ALLEXCEPT( 'Table'; 'Table'[Year]));
        CALCULATE( SUM('Table'[Value]); 'Table'[Year] = 2019) - CALCULATE( SUM( 'Table'[Value]); 'Table'[Year] = 2018)
    )

If this works then please mark it as the accepted solution.

[js124]

Thanks @Anonymous . While I can understand the logic, unfortunately I'm getting errors when trying to use the measure you suggested:

[Anonymous]

If you have an american setup then you should probably change the semicolons to commas.

Is your datamodel just one table or do you have multiple tables, i.e. dimDate?

IF(
        ISFILTERED('Table'[Year]),
        SUM('Table'[Value]) / CALCULATE( SUM( 'Table'[Value]), ALLEXCEPT( 'Table', 'Table'[Year])),
        CALCULATE( SUM('Table'[Value]), 'Table'[Year] = 2019) - CALCULATE( SUM( 'Table'[Value]), 'Table'[Year] = 2018)
    )