The Planning Commission shall have all powers related to the administration and modification of this Zoning Code which are given to it by statute, except as restricted by lawful ordinance, and such other powers as the City Council may lawfully delegate to it from time to time. The Planning Commission may, on its own initiative, formulate and transmit recommendations to the Council for amendments to the text or map of this Zoning Code. The affirmative vote of a quorum shall constitute official action by the Planning Commission as to any decision authorized by this Zoning Code.