Input calculation in specified rows and columns

[Buddy]

Sub Inspectthis()

Dim F As String
Dim I As Integer
Dim PrevRow As Long
Dim R As Long
Dim Rng As Range
Dim RngEnd As Range
Dim SumArray As Variant
Dim Wks As Worksheet

Set Wks = Worksheets("Sheet1")

SumArray = Array("O", "R", "U", "X", "AA", "AD", "AG")

Set Rng = Wks.Range("A2")
Set RngEnd = Wks.Cells(Rows.Count, Rng.Column).End(xlUp)
Set Rng = IIf(RngEnd.Row < Rng.Row, Rng, Wks.Range(Rng, RngEnd))

PrevRow = 2

For R = 2 To Rng.Rows.Count
If Rng.Item(R) = "Renovation" Then
For I = 0 To UBound(SumArray)
F = "=SUM(" & SumArray(I) & PrevRow & ":" & SumArray(I) & R & ")"
Wks.Cells(R + 1, SumArray(I)).Formula = F
Next I
PrevRow = R
End If
Next R

End Sub


The macro above will inspect every row in Column A for the text Renovation.
When the text Renovation is found the average formula, =Average(Range:Range)
will be inserted in the same row in Columns O, R, U, X, AA, AD, AG so that
all the rows above the formula with numbers will be included in the
calculation just as if I clicked the AutoSum icon and set it to average. The
problem I am having with macro above is that the formula range seems to be
grabbing into the calculation 1 extra row above what it should be including
in the formula which is messing up the computation. Can you help me fix this
macro so that it stops grabbing the 1 extra row above so the calculation is
correct?

 

[Buddy]

Please ignore this post. I mistakenly posted in the wrong forum. I will
repost in correct forum. Please ignore this post. Thank you.