How can I get top 10 from a table and sorted from highest to lowest.

littlevillage 

You may do that directly from data model using linked back table.

1) Create any dummy table

2) Add it to data model

3) Data -> Existing connections - select above table -> open -> save as table into the sheet

4) Right click menu on it -> Table -> Edit DAX -> select DAX as Command type -> add DAX query

EVALUATE
VAR getTop =
    TOPN (
        10,
        TOPN (
            10,
            SUMMARIZECOLUMNS (
                Data[Bưu cục gửi hàng],
                KEEPFILTERS (
                    FILTER (
                        ALL ( Data[Bưu cục gửi hàng] ),
                        NOT ( ISBLANK ( Data[Bưu cục gửi hàng] ) )
                    )
                ),
                "Late", [PU trễ giờ],
                "Percent",
                    [Tỷ lệ PU trễ giờ] + [PU trễ giờ] / 1e8
                        + RANDBETWEEN ( 1, 10000 ) / 1E18
            ),
            [Late], DESC
        ),
        [Percent], DESC
    )
VAR addIndex =
    ADDCOLUMNS ( getTop, "Index", RANKX ( getTop, [Percent],, DESC ) )
VAR adjustColumns =
    SELECTCOLUMNS (
        addIndex,
        "Serial", [Index],
        "Code ID", [Bưu cục gửi hàng],
        "Late", [Late],
        "Percentage", [Percent]
    )
RETURN
    adjustColumns
ORDER BY
    [Serial] ASC,
    [Late] DESC

5) Design table as desired

Serial number is generate with RANKX with some assumptions about values ranges. Perhaps we could take Total instead of Late, not sure about content.