Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!The Power BI Data Visualization World Championships is back! It's time to submit your entry. Live now!
Hello
i would like to create a measure that do the following:
MEASURE = (MONTH) - (LASTMONTH)
The idea is to use the variance to make a waterfall chart showing 2 years (24 months)
Solved! Go to Solution.
You can try with PREVIOUSMONTH function as smoupre said. Just give a simple sample as below. Assuming we have a sales table from 1/1/2014 to one day in 2017.
We can create a Calendar table firstly with following DAX formula. Create relationship with the sales table with date key. Put this Calendar[Date] column into the Slicer visual.
Calendar =
CALENDAR ( "1/1/2014", "12/31/2017" )Create a PreMonthSales and a Diff measure. Drag them into the Waterfall chart.
PreMonthSales = CALCULATE ( SUM ( Table1[Sales] ), PREVIOUSMONTH ( Table1[Date] ) )
MEASURE = CALCULATE ( SUM ( Table1[Sales] ) - [PreMonthSales] )
I've also uploaded the PBIX file here for reference.
Best Regards,
Herbert
You can try with PREVIOUSMONTH function as smoupre said. Just give a simple sample as below. Assuming we have a sales table from 1/1/2014 to one day in 2017.
We can create a Calendar table firstly with following DAX formula. Create relationship with the sales table with date key. Put this Calendar[Date] column into the Slicer visual.
Calendar =
CALENDAR ( "1/1/2014", "12/31/2017" )Create a PreMonthSales and a Diff measure. Drag them into the Waterfall chart.
PreMonthSales = CALCULATE ( SUM ( Table1[Sales] ), PREVIOUSMONTH ( Table1[Date] ) )
MEASURE = CALCULATE ( SUM ( Table1[Sales] ) - [PreMonthSales] )
I've also uploaded the PBIX file here for reference.
Best Regards,
Herbert
Thks herbert, that was just what i needed :).
Sounds like you need the PREVIOUSMONTH function:
https://msdn.microsoft.com/en-us/library/ee634758.aspx
Can't really say much more without sample data.
The Power BI Data Visualization World Championships is back! It's time to submit your entry.
Check out the January 2026 Power BI update to learn about new features.
| User | Count |
|---|---|
| 67 | |
| 44 | |
| 33 | |
| 27 | |
| 23 |
| User | Count |
|---|---|
| 137 | |
| 118 | |
| 58 | |
| 40 | |
| 35 |