The City Commission shall meet and review the special assessment roll at the time and place appointed, as provided in Section 216.09, or at an adjourned date therefor, and shall consider any written objection thereto as well as all objections concerning the necessity of making the proposed improvement. The Commission may correct such roll as to any assessment or description of any lot or parcel of land or any other error appearing therein. Any change made in such roll shall be noted in the Commission's minutes. After such hearing and review, the Commission may confirm such special assessment roll with such corrections as it may have made, if any, or may refer it back to the City Assessor for revision, or may annul it and any proceedings in connection therewith. Upon confirmation of any special assessment roll, the Commission shall determine the number of installments in which the assessment may be paid, which shall in no case exceed fifteen in number, and shall determine the rate of interest to be charged on unpaid assessments and installments, which shall in no case exceed an interest rate prohibited by law. The Clerk shall endorse the date of confirmation upon each special assessment roll.