Rolling 12 months %

[jaltoft]

Hello,

Can someone please help?

This is what I need (Ideally with the rolling showing accross a longer period but this is just a sample)-

YYYYMM	under 1hr	Total	In month %	Rolling 12 %
012022	456	500	91.20%
022022	678	700	96.86%
032022	480	520	92.31%
042022	562	578	97.23%
052022	574	600	95.67%
062022	586	600	97.67%
072022	598	620	96.45%
082022	610	630	96.83%
092022	622	640	97.19%
102022	634	645	98.29%
112022	646	650	99.38%
122022	658	670	98.21%	96.61%

This is what I have -

Calculate([Total],DATESINPERIOD(Calendar_Powerquery[Date-clean],MAX(Calendar_Powerquery[Date-clean]),-12,MONTH))

I also have the same measure for Incidents under 1 hr.

The issue I get when I put the data into a table in Power Bi is I can get the in month figure but I need a rolling which is worked out by summing the last 12 months incidents under 1 hr and the totals and then dividing.

[jaltoft]

Thanks @DataInsights 

[DataInsights · Accepted solution]

@jaltoft,

Try this measure. The tables have a relationship on the date column. The visual uses DimDate[YYYYMM].

Rolling 12 Month % = 
VAR vUnder1Hour =
    CALCULATE (
        SUM ( FactTable[under 1hr] ),
        DATESINPERIOD ( DimDate[Date], MAX ( DimDate[Date] ), -12, MONTH )
    )
VAR vTotal =
    CALCULATE (
        SUM ( FactTable[Total] ),
        DATESINPERIOD ( DimDate[Date], MAX ( DimDate[Date] ), -12, MONTH )
    )
VAR vResult =
    DIVIDE ( vUnder1Hour, vTotal )
RETURN
    vResult