DAX measure calculate sum of current and one previous month

dicken

Active Member
Joined
Feb 12, 2022
Messages
277
Office Version
  1. 365
Platform
  1. Windows
Hi,
I'd like to write a measure to calculate the sum of the current and previous month totals, so
Sum dec ; january, Sum January Febuary, Feb : March,
in a nonth month ( Date) scenario I've used the the following;
Excel Formula:
SPC:=
VAR oneV = IF(HASONEVALUE(Table1[Date]),VALUES(Table1[Date])) 

VAR PreV = MAXX(FILTER(ALL(Table1[Date]),Table1[Date]< oneV),Table1[Date]) 

RETURN 

CALCULATE([Tunits], FILTER(ALL('Calendar'[Date]),OR( 'Calendar'[Date]= oneV , 'Calendar'[Date] = PreV )))


but I can't come up with a similar contruction when working just with year /Month pivot table ;
essentially, Sum of
Excel Formula:
 {Tunits] and CALCULATE([Tunits],DATEADD('Calendar'[Date],-1,MONTH))

Any suggestion on how to acheive, this?

Richard.
 

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