How to retrieve data of one column based on another Numeric column in the same table?

Hi rahulmmenon ,

1. Get the name of Category based on the total sale maximum in a card visual.

sum group by category =
CALCULATE (
    SUM ( 'Table'[Sales] ),
    FILTER ( ALLSELECTED ( 'Table' ), [Category] = MAX ( 'Table'[Category] ) )
)

Category based on the total sale maximum =
CALCULATE (
    MAX ( 'Table'[Category] ),
    FILTER (
        ALLSELECTED ( 'Table' ),
        [sum group by category]
            = MAXX ( ALLSELECTED ( 'Table' ), [sum group by category] )
    )
)

2.Get the name of Category based on the Highest count of sales. The measure returns an aggregate value, and if there are categories with the same highest count, since I used MAX, it will return Mobile in alphabetical order of the categories. 

Count group by category =
CALCULATE (
    COUNT ( 'Table'[Sales] ),
    FILTER ( ALLSELECTED ( 'Table' ), [Category] = MAX ( 'Table'[Category] ) )
)

Category based on the Highest count of sales =
CALCULATE (
    MAX ( 'Table'[Category] ),
    FILTER (
        ALLSELECTED ( 'Table' ),
        [Count group by category]
            = MAXX ( ALLSELECTED ( 'Table' ), [Count group by category] )
    )
)

You can create the following measure to get the correct categories. Card visuals will only return an aggregated value, which is recommended to be viewed in a table visual.

Hiest Count Category =
IF (
    MAXX ( ALLSELECTED ( 'Table' ), [Count group by category] ) = [Count group by category],
    MAX ( 'Table'[Category] )
)

3.Get the name of Sub category  based on the highest sale.

Sub category  based on the highest sale = 
CALCULATE (
    MAX ( 'Table'[Sub category] ),
    FILTER (
        ALLSELECTED ( 'Table' ),
        [Sales] = MAXX ( ALLSELECTED ( 'Table' ), [Sales] )
    )
)

For you last question, what's the expected result? I think the count of sales based on each sub category is 1.

Best Regards,

Stephen Tao

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