The Council shall, before fixing the rate of annual city tax, establish by ordinance separate funds representing the several funded obligations of the city, if any, and of the several departments requiring municipal expenditures, including a General Fund, and the percentage of said levy shall be named for each fund, and the whole amount of taxes and revenue of the city apportioned accordingly; and no transfers shall be made except of balances in excess, or from the General Fund to meet deficiencies, or to provide for the redemption of city bonds, if any.