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New Member

## Calculate delta between the selected month and last month of the previous quarter

I have written a calcualtion to get the delta between the selected month and last month of the previous quarter. In this calculation, I am getting the value for current month correctly, but the "Metric_lastQtr" is giving null. I checked the return value for "LastDatePrevQtr" and it is giving me the correct date for last month of the quarter.

I have tried multiple things here but can't resolve it. Would be really helpful if someone can correct this formula:

Delta_Quarterly =
VAR CurrentMonth = MONTH(SELECTEDVALUE(FactScorecard[Date]))

-- Determine the last quarter month
VAR LastDatePrevQtr =
CALCULATE(
MAX(DimDate[Date]),
PREVIOUSQUARTER(DimDate[Date])
)

VAR Metric_CurrentMonth =
CALCULATE(
SUM(FactScorecard[Value]),
DimDate[MonthNumber] = CurrentMonth
)

VAR Metric_lastQtr =
CALCULATE(
SUM(FactScorecard[Value]),
REMOVEFILTERS(DimDate),
ALLEXCEPT(DimDate, DimDate[MonthYearNameShort]),
DimDate[Date] = LastDatePrevQtr
)

RETURN
Metric_CurrentMonth - Metric_lastQtr
1 ACCEPTED SOLUTION
Super User

Hi,

I am not sure how your semantic model looks like but I tried to create a sample pbix file like below.

Please check the below picture and the attached pbix file.

I hope the below can provide some ideas on how to create a solution for your semantic model.

``````Delta_last quarter last month: =
VAR _lastquarter =
CALCULATETABLE ( DimDate, PREVIOUSQUARTER ( DimDate[Date] ) )
VAR _lastquarterlastmonthenddate =
MAXX ( _lastquarter, DimDate[Year-Month sort] )
VAR _lastquarterlastmonthvalue =
CALCULATE (
SUM ( FactScorecard[Value] ),
FILTER (
ALL ( DimDate ),
DimDate[Year-Month sort] = _lastquarterlastmonthenddate
)
)
VAR _currentmonthvalue =
SUM ( FactScorecard[Value] )
RETURN
IF (
NOT ISBLANK ( _lastquarterlastmonthvalue ),
_currentmonthvalue - _lastquarterlastmonthvalue
)``````

If this post helps, then please consider accepting it as the solution to help other members find it faster, and give a big thumbs up.

2 REPLIES 2
Super User

Hi,

I am not sure how your semantic model looks like but I tried to create a sample pbix file like below.

Please check the below picture and the attached pbix file.

I hope the below can provide some ideas on how to create a solution for your semantic model.

``````Delta_last quarter last month: =
VAR _lastquarter =
CALCULATETABLE ( DimDate, PREVIOUSQUARTER ( DimDate[Date] ) )
VAR _lastquarterlastmonthenddate =
MAXX ( _lastquarter, DimDate[Year-Month sort] )
VAR _lastquarterlastmonthvalue =
CALCULATE (
SUM ( FactScorecard[Value] ),
FILTER (
ALL ( DimDate ),
DimDate[Year-Month sort] = _lastquarterlastmonthenddate
)
)
VAR _currentmonthvalue =
SUM ( FactScorecard[Value] )
RETURN
IF (
NOT ISBLANK ( _lastquarterlastmonthvalue ),
_currentmonthvalue - _lastquarterlastmonthvalue
)``````

If this post helps, then please consider accepting it as the solution to help other members find it faster, and give a big thumbs up.

New Member

It worked like a charm.

Thanks!!!

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