The Planning Commission report shall include a list of persons who testified at the hearing, a summary of the facts adduced at the hearing, the findings of the Planning Commission, and copies of any maps or other data and/or documentary evidence submitted in connection with the proposed amendment. Copy of such report and recommendation shall be transmitted to the City Council within ninety (90) days after the first notice of hearing thereon; provided however, that such time may be extended with the consent of the City Council and the petitioner for such amendment.