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## Month over Month Change

Hi guys,

need a hand with this.

I want to do the following:

1. total progress per month
2. Calculate change over each month

I have a progress and a date table.

I have tried using this formula for my measure:

`Last Month = CALCULATE([Total Progress], PREVIOUSMONTH('Progress Table'[Date]))`
`Total Progress= SUM('Progress Table'[Progress Amount] `

Also tried swapping out PREVIOUSMONTH with PARELLELPERIOD but my results are blank.

I cant seem to use SUM either as my sales table records day by day so if i have 100 for every day in the month all rows will be 3100

how can i shift the row up so i can see the difference like this using DAX:

1 ACCEPTED SOLUTION
Community Support

Hi @paulfink ,

The data model will usually contain temporal information at different granularities, and when you need to aggregate data by year, month, or other temporal granularity, it is a better choice to use columns in the date table rather than extracting the date part from a new calculated column in the fact table or using the date column in the fact table directly.
If it is based on your formula above, try converting it to the following formula and try again.

``````PreviousMonth =
CALCULATE (
SUM ( 'Table'[Total Scans] ),
ALL ( 'Table' ),
PREVIOUSMONTH ( 'Table'[Date] )
)``````

If the problem is still not resolved, please provide detailed error information and let me know immediately. Looking forward to your feedback.

Best Regards,
Henry

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

2 REPLIES 2
Community Support

Hi @paulfink ,

The data model will usually contain temporal information at different granularities, and when you need to aggregate data by year, month, or other temporal granularity, it is a better choice to use columns in the date table rather than extracting the date part from a new calculated column in the fact table or using the date column in the fact table directly.
If it is based on your formula above, try converting it to the following formula and try again.

``````PreviousMonth =
CALCULATE (
SUM ( 'Table'[Total Scans] ),
ALL ( 'Table' ),
PREVIOUSMONTH ( 'Table'[Date] )
)``````

If the problem is still not resolved, please provide detailed error information and let me know immediately. Looking forward to your feedback.

Best Regards,
Henry

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

Super User

@paulfink , You need to use date table marked as date table

`Last Month = CALCULATE([Total Progress], PREVIOUSMONTH('DAte'[Date]))`

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https://amitchandak.medium.com/power-bi-5-key-points-to-make-time-intelligence-successful-bd52912a5b...
To get the best of the time intelligence function. Make sure you have a date calendar and it has been marked as the date in model view. Also, join it with the date column of your fact/s. Refer :radacad sqlbi My Video Series Appreciate your Kudos.