Editing Highest averages method (section)

=== Majority-preservation clause ===
A majority-preservation clause guarantees any party winning a majority of the vote will receive at least half the seats in a legislature.<ref name="Pukelsheim-2017-8" /> Without such a clause, it is possible for a party with slightly more than half the vote to receive just barely less than half the seats (if using a method other than D'Hondt).<ref name="Pukelsheim-2017-8" /> This is typically accomplished by adding seats to the legislature until an apportionment that preserves the majority for a parliament is found.<ref name="Pukelsheim-2017-8" />