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Regular Visitor

## Calculate count of IDs per month, ignoring number of days selected in slicer

Hello,

I need ninjas' help here.

I try to calculate previous month amount in such a way, that later on I can put it as a KPI in a card visual. It should always show previous month amount relatively to what is seleceted in the date slicer. I tried PARALLELPERIOD(), but honestly I don't fully get how it functions as it was not showing me the right numbers. I also tried the syntaxis with Selected_Month = MAX(Selected_Month - 1), but I didn't succeed as I get just blank card.

Now I am using this expression:

Previous_Amount = CALCULATE([Count of IDs],PREVIOUSMONTH('Datetable'Date.[Date]),ALLEXCEPT('Date','Date'Date.[Month]))

The restriction is that Datetable contains duplicates as I work with time series data.

The best what I achieved by now is getting a table which returns me previous months amounts, but 1) it shows it thoughout the year, regardless month selected in the slicer; 2) I cannot convert this into a card.

I hope some help will come Thank you in advance!
1 ACCEPTED SOLUTION

Accepted Solutions
Community Support Team

## Re: Calculate count of IDs per month, ignoring number of days selected in slicer

Hi @taisiya

Regards,

Community Support Team _ Cherie Chen
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
5 REPLIES 5
Community Support Team

## Re: Calculate count of IDs per month, ignoring number of days selected in slicer

Hi @taisiya

```Measure =
CALCULATE (
COUNT ( Data[Products] ),
FILTER (
ALL ( Slicer ),
Slicer[Index]
>= SELECTEDVALUE ( Slicer[Index] ) - 1
&& Slicer[Index] < SELECTEDVALUE ( Slicer[Index] )
)
)
```

Regards,

Cherie

Community Support Team _ Cherie Chen
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Regular Visitor

## Re: Calculate count of IDs per month, ignoring number of days selected in slicer

Hi,

That is also not my case cause it will throw me an error about 'multiple values were supplied', I tried that as well. However I managed to solve the issue. If anyone is interested, I can post sample query here.

And thanks once again.

Community Support Team

## Re: Calculate count of IDs per month, ignoring number of days selected in slicer

Hi @taisiya

Sample data and expected output will be helpful to provide an accurate solution.

Regards,

Community Support Team _ Cherie Chen
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Highlighted
Regular Visitor

## Re: Calculate count of IDs per month, ignoring number of days selected in slicer

Hello,

I've managed to solve the problem. Thanks for cooperation.

Kind regards,

Taisiya

Community Support Team

Hi @taisiya