30 days count

qwaiti27231 , one way is to use relative date filter at viusal level or a slicer

https://docs.microsoft.com/en-us/power-bi/visuals/desktop-slicer-filter-date-range

 

or try this way : https://www.youtube.com/watch?v=duMSovyosXE

Hi qwaiti27231 

Due to I don't know your data model, I build a sample to have a test.

I think you may build a measure to calculate the running total in last 30 days for per day.

My Sample has Date column(2020/09/01 to 2020/10/28) and a value column.

My Measure:

 

Measure = 
VAR _PerDay =
    MAX ( Sheet2[Date] )
VAR _Last30Days =
    MAX ( Sheet2[Date] ) - 30
VAR _Sum30days =
    SUMX (
        FILTER (
            ALL ( Sheet2 ),
            Sheet2[Date] <= _PerDay
                && Sheet2[Date] >= _Last30Days
        ),
        Sheet2[Value]
    )
RETURN
    _Sum30days

 

Result:

You can download the pbix file from this link: 30 days count

 

Best Regards,

Rico Zhou

 

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