Help with Previous Day value Calculation

[Pquinlan21]

I could use help with determining why my code is not working. Thank you

[Greg_Deckler]

@Pquinlan21 Could be a whole host of things starting with using CALCULATE and DAX TI functions. You can do this simply by using this:

Measure = 
  VAR __Date = MAX('winston (2)'[Date])
  VAR __PrevDay = __Date - 1
  VAR __Result = SUMX( FILTER(ALLSELECTED('winston (2)'), [Date] = __PrevDay), [Daily PPC Natural Gas Burned mcal] )
RETURN
  __Result

[Pquinlan21]

@Greg_Deckler It worked to get the value for the previous day but it only provided that value. I would like it to give the previous value for each day if that is possible. I have attache a screen shot showing the results of the previous code. 

[Greg_Deckler · Accepted solution]

@Pquinlan21 Oh, it's a column. Just remove the MAX around the __Date variable calculation and you will be set.