G'day all

This is not a biggy as I am only playing with this workbook.

I am not a big fan of nesting hundreds of formulas, regardless if I can
turn Auto-Calc off or not; Over my works under-resourced, over-stretched
network, it can take forever to make a single recalculation so I look to
VBA to do most in order to side-step nesting.

Moving Forward:

This evaluates to cCell = EMPTY

Sub Update_Col_C()

Dim sSht As Worksheet
Dim mysYear As Range, mysMonth As Range, mysEmp As Range, mysExp As
Range, mysAmt As Range

Dim tSht As Worksheet
Dim mytYear As Range, mytMonth As Range, mytEmp As Range, mytExp As Range
Dim c1 As Range, cCell As Range

Set sSht = Worksheets("Expenses")
Set mysYear = sSht.Range("$A$2:$A$5000")
Set mysMonth = sSht.Range("$B$2:$B$5000")
Set mysEmp = sSht.Range("$D$2:$D$5000")
Set mysExp = sSht.Range("$E$2:$E$5000")
Set mysAmt = sSht.Range("$H$2:$H$5000")

Set tSht = Worksheets("Summary")
Set mytYear = tSht.Range("$B$1")
Set mytMonth = tSht.Range("$D$1")
Set mytEmp = tSht.Range("$C$2")


''used syntax that failed envoking ( Type MisMatch Error 13 ):
''Set mytexp = ccell.offset(0, -2).value


Set c1 = tSht.Range("C3:C134")

For Each cCell In c1
With cCell
.Value = WorksheetFunction.SumProduct((mysYear = mytYear) *
(mysMonth = mytMonth) * (mysEmp = mytEmp) * (mysExp = mytExp) * (mysAmt))
End With
Next cCell

End Sub

As always, thoughts, and or critique welcomed

Cheers
Mick.