The council after giving notice in such manner as it may by rule prescribe, shall have power to increase or lower the entire assessment as shown on the assessment book or roll or any assessment contained therein, so as to equalize the assessment of property contained in said book or roll, and make the assessment conform to the true value of such property in money, subject, however, to the notice provided in subsection B of Section 3.28.175. (Prior code § 6.04.360)