Rolling 12 months excluding current month

[mannyjha7860]

I ve tried rolling 12 month dax in the visual but when I select 12 months it doesn't show me full data for last year 1st month(Aug).But when I select 13 months it show me the full data for (Aug).

Dax I used:-

Rolling 12 Months = var daydiff=DATEDIFF('Calendar'[Date],TODAY(),MONTH ) return

IF(daydiff>=0 && daydiff<=11,"last 12 months","not last 12 months")

[amitchandak]

@mannyjha7860 , datediff in case of current month is 0, if you need last 12 month excluding current, then it should be

Rolling 12 Months = var daydiff=DATEDIFF('Calendar'[Date],TODAY(),MONTH ) return
IF(daydiff>0 && daydiff<=12,"last 12 months","not last 12 months")