80 percent
The preceding sentence shall also apply to amounts paid by the taxpayer into the Trans-Alaska Pipeline Liability Fund to the extent of amounts transferred from such Fund into the Oil Spill Liability Trust Fund. For purposes of this subsection, all taxpayers which would be members of the same affiliated group (as defined in section 1504(a) ) if section 1504(a)(2) were applied by substituting “100 percent” for “80 percent” shall be treated as 1 taxpayer.