Mute Duck - Power BI

Filter table data then count the filtered rows

Column Name = COUNTROWS ( -- count all the rows in the filtered data
    FILTER (
        ALL(table_name), -- table to filter
        table_name[column_1] = "N" && -- filter by this value
        table_name[column_2] = "N" && -- filter by this value
        table_name[column_2] = "Y"    -- filter by this value
    )
)