Insira este código em um módulo, antes de usá-lo, altere a variável qtycolumn para o número da coluna em que você tem seu título QTY :
Sub customgroup()
Dim a As Application
Dim wkb As Workbook
Dim wks As Worksheet
Dim DataRange As Range
Set a = Application
Set wkb = ThisWorkbook
Set wks = wkb.Sheets(1)
wks.Application.ScreenUpdating = False
qtycolumn = 4 'this have to be changed to the QTY column
reviewing = True
visitrow = 1
While reviewing = True
visitrow = visitrow + 1
If wks.Cells(visitrow, 1) = "" Then
reviewing = False
End If
If wks.Cells(visitrow, qtycolumn) <> 0 Then
countitems = 1
visitrow2 = visitrow + 1
reviewing2 = reviewing
While reviewing2 = True
If wks.Cells(visitrow2, 1) = "" Then
reviewing2 = False
End If
If wks.Cells(visitrow2, qtycolumn) <> 0 Then
compareranges = Join(a.Transpose(a.Transpose(wks.Rows(visitrow).Value)), Chr(0)) = Join(a.Transpose(a.Transpose(wks.Rows(visitrow2).Value)), Chr(0))
If compareranges = True Then
countitems = countitems + wks.Cells(visitrow2, qtycolumn)
wks.Cells(visitrow2, qtycolumn) = 0
End If
End If
visitrow2 = visitrow2 + 1
Wend
wks.Cells(visitrow, qtycolumn) = countitems
End If
Wend
visitrow = visitrow - 1
LastColumn = wks.Range("A1").CurrentRegion.Columns.Count
Set DataRange = Range(Cells(1, 1), Cells(visitrow, LastColumn))
lettercolumn = Split(Cells(, qtycolumn).Address, "$")(1)
DataRange.Sort key1:=Range(lettercolumn & ":" & lettercolumn), order1:=xlDescending, Header:=xlYes
For i = visitrow To 2 Step -1
filterqty = wks.Cells(i, qtycolumn)
If filterqty = 0 Then
wks.Rows(i).Delete
End If
Next i
wks.Application.ScreenUpdating = True
End Sub