Pick a Value From Slicer to Update matrix From Multiple Tables

[pucities]

I have a Sales table that looks like this:

SalesPersonID	State	SalesAmount
235235	CA	$5,000.00
123	CA	$10,000.00
5156	AZ	$80,000.00
23626	AZ	$20,000.00

From Sales table, I used SUMMARIZE to create the following StateAvg table that gives me State Average:

State	SalesAmountPerPerson
CA	$7,500.00
AZ	$50,000.00

I want to show the following Matrix just by using SalesPersonID slicer:

SalesPersonID	State	SalesAmount	SalesAmountStateAverage
123	CA	$10,000.00	$7,500.00

I built a bridge table for State. SalesPersonID is unique for each state. 

When I put 2 slicers: 1 for state and 1 for SalesPersonID, and select State=CA and SalesPersonID=123 in each slicer, I get what I want (3rd table above). 

However, when I just select SalesPersonID = 123 in a slicer, I get average for all states. I cannot create a relationship between Sales and StateAvg table directly because StateAvg table doesn't have SalesPersonID. 

How do I make it so that I can just select a SalesPersonID using Slicer to get the state average?

Thanks,

[TomMartens · Accepted solution]

Hey @pucities ,

I don't think it's necessary to use a table (SUMMARIZE), I created this measure:

Average Sales Amount = 
AVERAGEX(
    'Table1'
    , var _State = 'Table1'[State]
    return
    CALCULATE(
        AVERAGE('Table1'[SalesAmount])
        , ALL('Table1')
        , 'Table1'[State] = _State
    )
)

This allows to create a report like this:

or this

Depending on your data model (star-schema or a one-table solution) the DAX has to be adjusted.

Hopefully this is what your are looking for.

Regards,

Tom