DAX Logic for Calculating Rolling Sum

andy291086 — Mon, 27 Nov 2023 06:39:41 GMT

Hi Team,

I am new to Power BI and DAX. I had been assigned to convert an Excel report into Power BI which has the following calculations.

I am stuck up with the calculations for Behind , which is based on the excel formula , Prior Behind Days + ( Target Days - Rolling Average Days) / Weeks left. Behind Days for Week 1 is 0 .

For .e,g, for Week 3, the behind is calculated as 0.5 + (350 - 295.67)/49 = 1.6,

Can you please help ?

Cheers,

Andy

Re: DAX Logic for Calculating Rolling Sum

Anonymous — Wed, 29 Nov 2023 06:09:43 GMT

Hi andy291086 ,

I created a sample pbix file(see the attachment) for you, please check if that is what you want.

Week Number = VALUE(RIGHT('Table'[Week], LEN('Table'[Week]) - 5))

Column = VAR _preweek = CALCULATE ( MAX ( 'Table'[Week Number] ), FILTER ( 'Table', 'Table'[Week Number] < EARLIER ( 'Table'[Week Number] ) ) ) VAR _prewbdays = CALCULATE ( MAX ( 'Table'[Behind Days] ), FILTER ( 'Table', 'Table'[Week Number] = _preweek ) ) RETURN _prewbdays + ( 'Table'[Target Days] - [Rolling Average - Days] ) / 'Table'[Weeks Left]

Best Regards

topic DAX Logic for Calculating Rolling Sum in DAX Commands and Tips

DAX Logic for Calculating Rolling Sum

Re: DAX Logic for Calculating Rolling Sum