Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends August 31st. Request your voucher.

Reply
Anonymous
Not applicable

Need help with DAX

Hey Everyone,

 

I need your help.

I have a table with Recording details by month and I would like to see the difference based on slicer selection.

User has to select two Months in a slicer to compare the numbers.

Difference = Recordings (Later Month) - Recordings (Earlier month) 

Jess90_0-1663792610298.png

 

Table data looks like this:

Jess90_1-1663792845522.png

 

Is there a way to make the measure dynamic so it follows the slicer selection?

 

 

1 ACCEPTED SOLUTION
Greg_Deckler
Community Champion
Community Champion

@Anonymous There is if you unpivot those month columns so that you have:

Month, Value

March, 1200

April, 1500

...

You could then do this:

Difference Measure = 
  VAR __Min = MIN('Table'[Month])
  VAR __Max = MAX('Table'[Month])
  VAR __Month1 = MAXX(FILTER('Table',[Month] = __Min),[Recordings])
  VAR __Month2 = MAXX(FILTER('Table',[Month] = __Max),[Recordings])
RETURN
  __Month2 - __Month1

In reality, you will want a MonthSort column for Sort By and probably have to use that for your max/min, etc.



Follow on LinkedIn
@ me in replies or I'll lose your thread!!!
Instead of a Kudo, please vote for this idea
Become an expert!: Enterprise DNA
External Tools: MSHGQM
YouTube Channel!: Microsoft Hates Greg
Latest book!:
DAX For Humans

DAX is easy, CALCULATE makes DAX hard...

View solution in original post

2 REPLIES 2
Greg_Deckler
Community Champion
Community Champion

@Anonymous There is if you unpivot those month columns so that you have:

Month, Value

March, 1200

April, 1500

...

You could then do this:

Difference Measure = 
  VAR __Min = MIN('Table'[Month])
  VAR __Max = MAX('Table'[Month])
  VAR __Month1 = MAXX(FILTER('Table',[Month] = __Min),[Recordings])
  VAR __Month2 = MAXX(FILTER('Table',[Month] = __Max),[Recordings])
RETURN
  __Month2 - __Month1

In reality, you will want a MonthSort column for Sort By and probably have to use that for your max/min, etc.



Follow on LinkedIn
@ me in replies or I'll lose your thread!!!
Instead of a Kudo, please vote for this idea
Become an expert!: Enterprise DNA
External Tools: MSHGQM
YouTube Channel!: Microsoft Hates Greg
Latest book!:
DAX For Humans

DAX is easy, CALCULATE makes DAX hard...
Anonymous
Not applicable

Hi @Greg_Deckler ,

 

Really appreciate your help, that is definately best solution.

But what if I change the data little bit as below:

 

Jess90_0-1663810993586.png

Can you pls help with this too @Greg_Deckler ? 

Helpful resources

Announcements
July 2025 community update carousel

Fabric Community Update - July 2025

Find out what's new and trending in the Fabric community.

July PBI25 Carousel

Power BI Monthly Update - July 2025

Check out the July 2025 Power BI update to learn about new features.

Join our Fabric User Panel

Join our Fabric User Panel

This is your chance to engage directly with the engineering team behind Fabric and Power BI. Share your experiences and shape the future.