Month over Month

[Anonymous]

Hello I am trying to show a month by month comparison betweeen total views. I have been looking at youtube and this channel as well for answers and im not sure if I dont have enough data or what exactly I am doing wrong. I only have 3 months worth of data so maybe thats my issue 

I started out with just one dataset "data" which has a column of "Total Views"

My first attempt i did:

tv = SUM(data[Total Views])

total views last month =

CALCULATE(

[tv],

PARALLELPERIOD(

'data'[Date].[Date],

-1,

MONTH)

)

but i just get the exact same number for that month when trying to graph it ot show it in a table

also tried this code:

total by month LM = CALCULATE(SUM(data[Total Views]),DATEADD(data[Date].[Date],-1,MONTH))

but gives me the same results 

The end goal would be to have a bar chart that would show the difference between the current month and past month 

also tried 

PrevMonthRev = CALCULATE(sum(data[Total Views]),PREVIOUSMONTH('data'[Date].[Date]))

but thats not even giving me any numbers 

[Anonymous · Accepted solution]

Hi @Anonymous ,

I tried this and it worked on my side:

PrevMonthRev = CALCULATE(sum(data[Total Views]),PREVIOUSMONTH('data'[Date].[Date]))

You may simply use this:

total by month LM = CALCULATE(SUM('data'[Total Views]),PARALLELPERIOD ( 'data'[Date].[Date], -1, MONTH ))

Here is the final output:

Best Regards,
Eyelyn Qin
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Anonymous]

Awesome, this works perfectly!! Thank you!!

[wdx223_Daniel]

CALCULATE(SUM(data[Total Views]),DATEADD(data[Date].[Date],-1,MONTH),ALL(data[Date]))

[jwelch]

Since this question is on DAX, you would be more likely to get an answer by posting in the DAX forum (DAX Commands and Tips - Microsoft Power BI Community).