VBA- WorkSheetFunction.SumIF - Defining Arguments

Question

I ve been reading about Application.WorksheetFunction.SumIfs grammar but I still don t get it.

My question: I am looking for the content of a cell or some word "Example" into a row. Then what I need is to sum all the values of another row when they match that word,"Example". Here s my code

Sub sumasi()

Dim wb As Workbook
Dim wsD As Worksheet
Dim Arg1 As Range
Dim Arg2 As Range
Dim Arg3 As Variant

Set wb = ThisWorkbook
Set wsD = wb.Worksheets("Data")

    Set Arg1 = wsD.Range("A1:RH1") 'where to find
    Set Arg2 = wsD.Range("SG3") 'what to find
    Set Arg3 = wsD.Range("AK4:RH4") 'what to sum

    wsD.Range("SG4").Value = Application.WorksheetFunction.SumIfs(Arg1, Arg2, Arg3)


End Sub

My code doesn t work...coud you help me? Thanks! (I don t want to write the Formula on the cell, I want to write directly the value because I am avoiding using formulas due to Excel weight) Thanks again

Cheers