Calculating Invoice Qty And Amount Group by Month Year

Hi Everybody,

I'm having problems with group quantity and Amount by the month of Posting Date (Month-Year)
I wrote a Qty and Sales Amount calculation from the Value Entry table. But it is impossible to show the Posting Date Group by Month-Year.

 WITH ValueEntry DO BEGIN
      SETRANGE("Item No.", Item."No.");
      SETRANGE("Item Ledger Entry Type","Item Ledger Entry Type"::Sale);
      SETRANGE("Posting Date",FromDate, Todate);
      CALCSUMS("Invoiced Quantity","Sales Amount (Actual)");
      SalesQty += -"Invoiced Quantity";
      SalesAmt += "Sales Amount (Actual)";
END;

I need the data to be listed under the Month-Year group. Please help me with 1 solution.
Thanks very much.

Month-Year Item No SalesQty SalesAmt
09-2020 A100 1000 5000
09-2020 A200 500 2500
09-2020 A300 400 5000
10-2020 A100 1500 8000
10-2020 A200 550 3000
10-2020 A400 200 4000