Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Get Fabric Certified for FREE during Fabric Data Days. Don't miss your chance! Request now

Reply
luismolle
Regular Visitor

Forecast Last 6 Months using the last forecast

Hi! Im struggling with forecasting in Power BI.
I have a table with dates, Attributes and amounts. My idea is to calculate the amount for the nexts months based on the last 6 values I have. For the next the calc should consider the 5 actual months and the forecast done, for example:

luismolle_0-1719263650369.png

(dummy data)

in this case, april should be the average of the last six months, and May should be the average of last five filled and April that was just calculated.

1 REPLY 1
Anonymous
Not applicable

Hi @luismolle ,

Regarding your question, this is an iterative calculation. That is, the value of the current row is based on the result of the calculation of the previous row. This cannot be achieved in DAX. It is recommended that you use Power Query M code.

List.Accumulate - PowerQuery M | Microsoft Learn

 

Helpful resources

Announcements
November Power BI Update Carousel

Power BI Monthly Update - November 2025

Check out the November 2025 Power BI update to learn about new features.

Fabric Data Days Carousel

Fabric Data Days

Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.