(a) Initiative. If a majority of the electors voting on a proposed initiative ordinance vote in its favor, it shall be considered adoption upon certification of the election results and shall be treated in all respects in the same manner as ordinances of the same kind adopted by Council. If conflicting ordinances are approved at the same election, the one receiving the greatest number of affirmative votes shall prevail to the extent of such conflict.
(b) Referendum. If a majority of the electors voting on a referred ordinance vote against it, it shall be considered repealed upon certification of the election results. If a majority of the electors voting on a referred ordinance vote in favor of it, it shall take effect upon certification of the election results and in no case shall its effect be retroactive.