Share of grand total with parameters

[eaj]

I'm trying to build a self-service tool with three field parameters in a matrix: Row_param, column_param, and measures_param.

All measures work fine except 'Share of Total Patients'. I'm running into issues when my total (the divider) is constantly changing with the selection of parameters. How do I express the total in DAX?

My current measure:
Share of Grand Total (Patients) =
DIVIDE(
[Patients],
CALCULATE(
ALLSELECTED(dim_insurancecompany[name]),
ALLSELECTED(dim_date[week]),
[all other dimensions....],
ALLSELECTED(dim_item[articletype])
))

The columns in ALLSELECTED are the same as in my row and column parameters. I would like it to be calculated per column level. I've tried enabling that setting in the Power BI visual, but nothing happens. What am I doing wrong?

Current output:

[amitchandak]

@eaj , Nor very clear, Try like

Share of Grand Total (Patients) =
DIVIDE(
[Patients],
CALCULATE([Patients], allselected() ))

[eaj]

Im sorry for beeing unclear. I'll try again. I'm using this messure (full version):

Share of patients =

    DIVIDE([Patients],

    CALCULATE([Patients],

      Allselected(Dim_Date[Week]),

        Allselected(Dim_Date[MonthYear]),

        Allselected(Dim_Department[BusinessArea]),

        Allselected(Dim_Department[DepartmentDescription]),

        Allselected(Dim_Item[Clinic/Retail]),

        Allselected(Dim_Item[InvoiceGroup]),

        Allselected(Dim_Item[ItemCode]),

        Allselected(Dim_Item[ItemDescription]),

        Allselected(Fact_BillingInvoiceRows[Age]),

        Allselected(Dim_InsuranceCompany[InsuranceCompanyDescription]),

        Allselected(Fact_BillingInvoice[Ny kund]),

        Allselected(Fact_BillingInvoiceRows[Ny patient])

    ))

These are my parameters 

parameter_measures = {

    ("Fakturor CY", NAMEOF('_Measures'[Invoices CY]), 0),

    ("Fakturor LY", NAMEOF('_Measures'[Invoices LY]), 1),

    ("Fakturor vs LY", NAMEOF('_Measures'[Invoices vs LY]), 2),

    ("Omsättning CY", NAMEOF('_Measures'[Revenue CY]), 3),

    ("Omsättning LY", NAMEOF('_Measures'[Revenue LY]), 4),

    ("Omsättning vs LY", NAMEOF('_Measures'[Revenue vs LY]), 5),

    ("Patienter", NAMEOF('_Measures'[Patients]), 6),

    ("Patienter LY", NAMEOF('_Measures'[Patients LY]), 7),

    ("Patienter vs LY", NAMEOF('_Measures'[Patients vs LY]), 8),

    ("Andel Patienter", NAMEOF([Share of patients]), 8.5),

    ("Unika patienter CY", NAMEOF('_Measures'[Unique paitents CY]), 9),

    ("Unika patienter LY", NAMEOF('_Measures'[Unique patients LY]), 10),

    ("Unika patienter vs LY", NAMEOF('_Measures'[Unique patients vs LY]), 11)

}

parameters_columns = {

    ("Veckor", NAMEOF(Dim_Date[Week]), 1),

    ("Månader", NAMEOF(Dim_Date[MonthYear]), 2),

    ("Affärsområde", NAMEOF(Dim_Department[BusinessArea]), 3),

    ("Klinik", NAMEOF(Dim_Department[DepartmentDescription]), 4),

    ("Typ av försäljning(klinik/butik)", NAMEOF(Dim_Item[Clinic/Retail]), 5),

    ("Artikelgrupp", NAMEOF(Dim_Item[InvoiceGroup]), 6),

    ("Artikelkod", NAMEOF(Dim_Item[ItemCode]), 8),

    ("Artikelnamn", NAMEOF(Dim_Item[ItemDescription]), 9),

    ("Patientålder vid behandlingen", NAMEOF('Fact_BillingInvoiceRows'[Age]), 10),

    ("Försäkringsbolag", NAMEOF(Dim_InsuranceCompany[InsuranceCompanyDescription]), 11),

    ("Ny kund", NAMEOF(Fact_BillingInvoice[Ny kund]), 12),

    ("Ny patient", NAMEOF(Fact_BillingInvoice[Ny kund]), 13)

}

parameters_rows = {

    ("Veckor", NAMEOF(Dim_Date[Week]), 2),

    ("Månader", NAMEOF(Dim_Date[MonthYear]), 1),

    ("Affärsområde", NAMEOF(Dim_Department[BusinessArea]), 3),

    ("Klinik", NAMEOF(Dim_Department[DepartmentDescription]), 4),

    ("Typ av försäljning(klinik/butik)", NAMEOF(Dim_Item[Clinic/Retail]), 5),

    ("Artikelgrupp", NAMEOF(Dim_Item[InvoiceGroup]), 6),

    ("Artikelkod", NAMEOF(Dim_Item[ItemCode]), 8),

    ("Artikelnamn", NAMEOF(Dim_Item[ItemDescription]), 9),

    ("Patientålder vid behandlingen", NAMEOF('Fact_BillingInvoiceRows'[Age]), 10),

    ("Försäkringsbolag", NAMEOF(Dim_InsuranceCompany[InsuranceCompanyDescription]), 11),

    ("Ny kund", NAMEOF(Fact_BillingInvoice[Ny kund]), 12),

    ("Ny patient", NAMEOF(Fact_BillingInvoice[Ny kund]), 13)

}

Used in the self-service visuals like this:

The math is not incorrect, but I would like it to show the share between categories on column-basis. So each column sum to 100%. Right now the entire matrix sum to 100%.