Group Records by Month then calculate Percent

[sabeensp]

I have a very simple problem that I'm strugling to resolve.

I have a follwing Table Called Payroll

Month ------ Dept ------- Amount
1-2019------ Fin ------- 50

1-2019------ Hr ------- 35

1-2019------ Mkt ------- 15

2-2019------ Fin------- 20

2-2019------ Hr------- 55

2-2019------ Mkt------- 25

I need follwing result

Month ------ Dept ------- Amount ---- Percent
1-2019------ Fin ------- 115 ---- 69% (Becuase 115 of 165 total of 1-2019)

1-2019------ Hr ------- 35 ------ 21.21% (Becuase 35 of 165 total of 1-2019)

1-2019------ Mkt ------- 15------ 9.09% (Becuase 15 of 165 total of 1-2019)

2-2019------ Fin------- 120  -- so on

2-2019------ Hr------- 25 -- so on 

2-2019------ Mkt------- 20 -- so on 

So basically, I want to get % at each month level.

Thanks

[MFelix · Accepted solution]

Hi @sabeensp ,

You need to add the following measure to your model:

% over month =
SUM ( Payroll[Amount] )
    / CALCULATE ( SUM ( Payroll[Amount] ); ALLEXCEPT ( Payroll; Payroll[Month] ) )

Another option is this:

% over month =
SUM ( Payroll[Amount] )
    / CALCULATE (
        SUM ( Payroll[Amount] );
        ALL ( Payroll[Month]; Payroll[Dept] );
        VALUES ( Payroll[Month] )
    )

Both give the same result but based on the size of your table they can provide different performance.

Regards,

MFelix