They following, based on your example, will work.
Code:
Sub Macro1()
Dim oTable As Table
Dim i As Long
Dim oRng As Range
Dim sText As String
Set oTable = Selection.Tables(1)
With oTable
For i = 1 To .Rows.Count
Set oRng = .Rows(i).Cells(1).Range
If InStr(1, oRng.Text, "/") > 0 Then
sText = Split(oRng.Text, "/")(0)
If Not sText = "Income" And IsNumeric(sText) = False Then
oRng.Text = Trim(Split(oRng.Text, "/")(1))
End If
End If
Next i
End With
Set oTable = Nothing
Set oRng = Nothing
End Sub