aqui está um código alterado:
Sub Found()
Dim ws As Worksheet: Set ws = ThisWorkbook.Sheets("Sheet2")
Dim SearchRange As Range, SearchCell As Range
Set SearchRange = ws.Range("F1:F20")
For Each SearchCell In SearchRange
If SearchCell.NumberFormat = "000.00" Then
SearchCell.Interior.Color = vbRed
End If
Next SearchCell
End Sub