Sum value based on Selected filters

Hi ViralPatel212 

For your question, here is the method I provided:

Here's some dummy data

"Dealer Ranking"

Create a measure. Count the total number of selected slicers.

Currency Count = 
    COUNTROWS(
        VALUES('Dealer Ranking'[Currency])
    )

Create a measure. Calculate the sum of Ranking Size.

Ranking Size (Vol) = 
VAR CurrencyCount = [Currency Count]
VAR SelectedCurrency = IF(HASONEVALUE('Dealer Ranking'[Currency]), SELECTEDVALUE('Dealer Ranking'[Currency]), BLANK())
VAR SumSingleCurrency =
    CALCULATE(
        SUM('Dealer Ranking'[Ranking Size]),
        'Dealer Ranking'[Currency] = SelectedCurrency
    )
VAR SumEURConverted =
    SUMX(
        'Dealer Ranking', 
        [Ranking Size]
    )
VAR SumAllCurrencies =
    CALCULATE(
        SUM('Dealer Ranking'[Ranking Size]),
        ALL('Dealer Ranking'[Currency])
    )
RETURN
    SWITCH(
        TRUE(),
        CurrencyCount = 1, SumSingleCurrency,
        CurrencyCount = 2, SumEURConverted,
        SumAllCurrencies)

Here is the result.

Regards,

Nono Chen

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