How to apply filter here

[JustinDoh1]

I have this measure (that I am trying to add more filter):

Skill Mix % Total =

Divide(

    sum(Table[Average1])

    ,  

    sum(Table[Ave Census])

)

I am trying to add another filter because I need to bring only certain location (FacilityCode = 850) out of all.

I tried this way, but it comes with this error "Too many arguments were passed tot he DIVIDE function. The maximum argument count for the function is 3". 

Skill Mix % Total 850=

Divide(

             (sum(   

                       Table[Average1]            

                      ),

                     filter(Table, Table[FacilityCode] = 850)

            ),  

           (sum(

                      Table[Ave Census]          

                   ),

                   filter(Table, Table[FacilityCode] = 850)

          )

)

How do I add a filter in this case?

[AlexisOlson · Accepted solution]

Did you forget to include CALCULATE?

Skill Mix % Total 850 =
DIVIDE (
    CALCULATE (
        SUM ( Table[Average1] ),
        FILTER ( Table, Table[FacilityCode] = 850 )
    ),
    CALCULATE (
        SUM ( Table[Ave Census] ),
        FILTER ( Table, Table[FacilityCode] = 850 )
    )
)