How to calculate difference between two tiles with different slicers dynamically?

[senescence]

Hi,

I suspect there is no solution to this but here goes:

I have data in a table as follows:

High, 01/09/17

High, 01/09/17

Medium, 01/09/17

Low, 01/09/17

High, 02/09/17

Medium, 02/09/17

Medium, 02/09/17

Low, 02/09/17

High, 03/09/17

Medium, 03/09/17

Low, 03/09/17

Low, 03/09/17

In my report I have two tables and two slicers (that only work on one table each). So a user selecting 01/09/17 in Slicer A and 03/09/17 in Slicer B gets:

Table A:

High, 2

Medium, 1

Low, 1

Table B:

High, 1

Medium, 1

Low, 2

What I want is to show the difference between these two tiles:

Difference:

High, -1

Medium, 0

Low, 1

It is similar to this problem but the solution here doesn't allow the user make changes using the slicers as the filter is apllied in the query editor:

https://community.powerbi.com/t5/Desktop/How-to-calculate-difference-after-different-filter-settings...

I'm new to Power BI so any help appreciated.

Thanks.

[v-yulgu-msft · Accepted solution]

Hi @senescence,

To achieve this requirement, the date column added into two slicers have to come from two unrelated tables. So, in this scenario, you should create two calendar tables:

Calendar Date = CALENDAR(MIN('Test'[Date]),MAX('Test'[Date])) 

Calendar Date 2 = CALENDAR(MIN('Test'[Date]),MAX('Test'[Date]))

Then, create three measures like below:

Count1 = CALCULATE(COUNT('Test'[Date]),FILTER('Test','Test'[Date]=MAX('Calendar Date'[Date])))
Count2 = CALCULATE(COUNT('Test'[Date]),FILTER('Test','Test'[Date]=MAX('Calendar Date 2'[Date])))

diff = [Count2]-[Count1]

Add corresponding columns and measures into table visual. Notice that the date in slicer1 comes from 'Calendar Date', while date in slicer2 should come from 'Calendar Date 2'.

Best regards,
Yuliana Gu

[senescence]

This worked perfectly and makes complete sense - thanks for your help.