Amendments to this Charter may be framed and submitted to the electors of the City by a Charter Commission in the manner provided by the Ohio Constitution for framing and submitting a new charter. Amendments may also be proposed and submitted by ordinance passed by a vote of two-thirds majority of the members of the City Council, or by a petition signed by not less than ten per centum of the qualified electors of the City, setting forth any proposed amendment; and filed with the City Clerk in accordance with the provisions of Article VIII of this Charter, whereupon the Council shall forthwith provide by ordinance for submitting such proposed amendment to a vote of the electors. Any ordinance for submitting a Charter amendment to the electors, shall provide that such amendment be submitted at the next regular municipal election if one shall occur not less than sixty nor more than one hundred twenty (120) days after the passage of the ordinance; otherwise it shall provide for the submission of the amendment at a special election to be called and held within the time aforesaid. Not less than thirty days prior to such election the City Clerk shall cause to be published in one or more newspapers of general circulation in the City the complete text of the proposed amendment. If a proposed amendment be approved by a majority of the electors voting thereon it shall become a part of the Charter at the time fixed thereon.