It's not exactly clear what you're trying to do, since nothing about your code has anything to do with justification vis-à-vis "all the dollar amounts become left justified". Try:
Code:
Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Range
With .Find
.ClearFormatting
.Replacement.ClearFormatting
.Text = "[!^13]@^13"
.Replacement.Text = ""
.Forward = True
.Wrap = wdFindStop
.Format = False
.MatchWildcards = True
.Execute
End With
Do While .Find.Found
If .Information(wdWithInTable) = False Then
Select Case .Characters.First
Case Chr(32), vbCr
Case Else: .InsertBefore "(U) "
End Select
Else
.End = .Tables(1).Range.End
End If
.Collapse wdCollapseEnd
.Find.Execute
Loop
End With
Application.ScreenUpdating = True
End Sub