The Mayor, the Chairman of the Council Finance Committee, or the Chairman's designee from among the members of Council, and the directors of the several departments, established either by this Charter or by ordinance, shall constitute a Board of Control. The Mayor shall be ex-officio President. The Director of Finance shall be Secretary. The Board shall keep a journal of its proceedings. The voting shall be taken by "yeas" and "nays" and entered in the journal, and the vote of a majority of all of the members of the Board shall be necessary to adopt any question, motion, or order. All meetings of the Board shall be open to the public. The Council of the City of Euclid shall establish minimum expenditure levels requiring approval by the Board of Control. The Board shall have such further powers and perform such further duties as shall be prescribed by ordinance.