Dynamic Variance between Figures

[pbijack93]

I've used PARRALLELPERIOD for MONTH, to get FTE difference between the previous month.

However I have to do another for YEAR, QUARTER etc.

Is there any way at all to do with dynamically with EARLIER. 

So I can have 1 variance figure on a matrix table or a graph, but I can drill down. So the year differential will be shown, but drill into the months and the differential will be shown between them too. 

Any help or advice? Thank you.

I have a date table, relationship to a cycle date on the fact table, which also has FTE value. 

[pbijack93]

@Greg_Deckler any thoughts, thank you 

[Greg_Deckler]

@pbijack93 You may find this helpful - https://community.powerbi.com/t5/Community-Blog/To-bleep-With-Time-Intelligence/ba-p/1260000

Also, see if my Time Intelligence the Hard Way provides a different way of accomplishing what you are going for.

https://community.powerbi.com/t5/Quick-Measures-Gallery/Time-Intelligence-quot-The-Hard-Way-quot-TIT...

Sorry, having trouble following, can you post sample data as text and expected output?
Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.

[pbijack93]

@Greg_Deckler thank you 🙂

The below shows you so far - Month_Var has the following DAX: 

FTE_Prev_Mnth = 
CALCULATE(
    [FTE_Demand],
    PARALLELPERIOD(
        Date_Dim[Date],
        -1,
        MONTH)
)

However - how can i make this dynamic, for example not always a period of -1 , say if i selected april-24 and july-24 , id like to see the difference between them two months. 

And also - say if i drill up on the matrix , can Month_Var for example show the difference between the years, all within one measure/column.

Ive tried with the dynamic one - thats just totalling each months FTE total without a filter and comparing to itself, however I thought I was on the correct lines... Seems not!!

Dynamic FTE_Demand Difference = 

var dt =SELECTEDVALUE(Fact_IBP_Data[Cycle_Date])
var min_dt = CALCULATE(MIN(Fact_IBP_Data[Cycle_Date]),Fact_IBP_Data[Cycle_Date]>dt)
var val = CALCULATE(SUM(Fact_IBP_Data[FTE]),Fact_IBP_Data[Cycle_Date]=min_dt) - SUM(Fact_IBP_Data[FTE])
return val

[Greg_Deckler]

@pbijack93 Yeah, my advice is to not use DAX TI functions, they are not flexible or intuitive. Better to do it with just good old FILTER function.

[pbijack93]

@Greg_Deckler Thank you - ive been playing with variables and filters - but the result then gives me everything in two columns on the matrix.

Would you be able to provide me with an example that i can build off using my data please? Id be really grateful.

Thank you 

Jack