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Frequent Visitor
Posts: 3
Registered: ‎02-14-2019

# Calculate measure based on if statement

Hello!

This year I started with PowerBI, i have about 2 years experience with QlikSense/View. So most of the challenges I could solve with my experience with Qlik. But now I just cant get it to work like I want, hope you can help!

I want to make the following measure: sum([Amount]) + sum(previousmonth([Amount]) from the FACT table. But when its january 2018 i dont want to sum the previous month 2017 december. So sum only if the previous month is in the current year.... In Qlik i would have done something like...if year from fact table matches the calendar year then sum amount + previousmonth amount.

how do i achieve this in PowerBI?

Accepted Solutions
Highlighted
Community Support Team
Posts: 5,880
Registered: ‎09-21-2016

## Re: Calculate measure based on if statement

Hi @RH-BIP,

Please refer to this thread to use PREVIOUSMONTH function properly.

In your scenario, the IF statement could be similar to:

```Measure =
IF (
MONTH ( SELECTEDVALUE ( 'DateTime'[DateKey] ) ) <> 1,
SUM ( Fact[Amount] )
+ CALCULATE ( SUM ( Fact[Amount] ), PREVIOUSMONTH ( 'DateTime'[DateKey] ) )
)```

For more advice, please provide sample data and desired result as suggested in this article.

Best regards,

Yuliana Gu

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

All Replies
Highlighted
Community Support Team
Posts: 5,880
Registered: ‎09-21-2016

## Re: Calculate measure based on if statement

Hi @RH-BIP,

Please refer to this thread to use PREVIOUSMONTH function properly.

In your scenario, the IF statement could be similar to:

```Measure =
IF (
MONTH ( SELECTEDVALUE ( 'DateTime'[DateKey] ) ) <> 1,
SUM ( Fact[Amount] )
+ CALCULATE ( SUM ( Fact[Amount] ), PREVIOUSMONTH ( 'DateTime'[DateKey] ) )
)```

For more advice, please provide sample data and desired result as suggested in this article.

Best regards,

Yuliana Gu

Community Support Team _ Yuliana Gu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Frequent Visitor
Posts: 3
Registered: ‎02-14-2019

## Re: Calculate measure based on if statement

@v-yulgu-msft exactly what i needed!

Had to alter it a bit but this works, thank you!

```Previous = SUM ( 'Fact table'[Amount] ) + IF (
MONTH ( SELECTEDVALUE ( 'Calender'[Jaar_maand] ) ) <> 1, CALCULATE ( SUM ( 'Fact table'[Amount] ), PREVIOUSMONTH ( 'Calender'[Datum] ) )```