Average for the month

[Mikeincairns]

Hi.  I need a monthly average of the following fornightly data.  Note: Some months have two fortnights and some have three.

I will be filtering by month and year.

Happy to use M Query or DAX, whichever is easiest.

[Mikeincairns · Accepted solution]

Thanks @Jihwan_Kim and @Anonymous 

I also got to it with the CALCULATE function.  I had 
=CALCULATE(AVGERAGE(tblPayroll[Actual payroll FTEs per fnight]),
  FILTER(tblPayroll,tblPayroll[Date] )
   )

which seems to work.
I will also try to figure the logic suggested by @Anonymous 

[Jihwan_Kim]

Hi,

Please check the below picture and the attached pbix file.

I tried to create a sample pbix file like below.

It is for creating a table visualization.

In case calendar table does not exist, please try creating a additional columns in the same table like below, and then use Month Year CC column as an axis.

[Anonymous]

Hello @Mikeincairns , 

Add a new column month

Month = MONTH([Date])

Then the average of each month is

New measure = CALCULATE(AVERAGE([Actual Payroll FTEs per fnight]),ALLEXCEPT(table,[Month]))