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Helper II

## Rolling Average 12 Months

Hello,

I see a lot of questions on here about the rolling average however I cannot get any of them to work for my problem. I need a rolling 12 month average that is not affected by the slicer control (ie. not to reset at the start of the filtered table).

I need to SUM the last 12 months of [N2 Component] and Divide by the SUM of the last 12 months of [Total Sold]. To create a rolling 12 month average. I need it to go further than the selected dates in the slicer. Ie. Not to restart at July 2022, the July number should be July 2022 - Aug 2021. And should be blank if there is no data in the N2 or Total Sold

I have a separate Date Table. Unfortunately I cannot upload a sample of my files, only images - apologies! I hope someone can help, I feel like this is very simple, just can't get my head around it.

TIA 🙂

1 ACCEPTED SOLUTION
Helper II
5 REPLIES 5
Super User
Super User

Hi @JNelson ,
You can try out this example :-

Here are the steps you can follow：

1. Create measure.

``````Sum =
var _1=
IF(MAX([month])<>12,
CALCULATE(MAX('Table'[Month-Year]),FILTER(ALL('Table'),'Table'[Year]=MAX('Table'[Year])-1&&'Table'[month]=MAX('Table'[month])+1)),
DATE(YEAR(MAX([Month-Year])),1,1))

var _2=
CALCULATE(
SUM('Table'[Value]),
FILTER(ALL('Table'),[Month-Year]>=_1&&[Month-Year]<=MAX([Month-Year])))
return _2``````
``````Sum/12 =
var _1=
IF(MAX([month])<>12,
CALCULATE(MAX('Table'[Month-Year]),FILTER(ALL('Table'),'Table'[Year]=MAX('Table'[Year])-1&&'Table'[month]=MAX('Table'[month])+1)),
DATE(YEAR(MAX([Month-Year])),1,1))

var _2=
CALCULATE(
SUM('Table'[Value]),
FILTER(ALL('Table'),[Month-Year]>=_1&&[Month-Year]<=MAX([Month-Year])))
return _2/12``````

Thanks ,
Pratyasha Samal
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Helper II
Helper II

Can you please describe how the calendar table should look? I'm a bit confused with the [Month] [Month-Year] [Year] measures you're referring to? Should I split my date column out into those three?

Thanks

Super User

Hi @JNelson ,
Yes you can add 3 columns .
You can refer to this link for more info regarding calender table in power bi :-
https://hevodata.com/learn/power-bi-calendar-table/

Thanks ,
Pratyasha Samal
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If you found this post helpful, please give Kudos C

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Proud to be a Super User!

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