(1) Unless the city manager or council, as apposite, determines in writing that consideration of one or more of the following factors is irrelevant or inapplicable, in determining the amount or rate of any charge, fee or rent imposed for the use of Mahlon Sweet Airport, the city manager or council shall consider the following:
(a) The amount charged for such use in the past;
(b) Comparable amounts or rates, if any, charged by other airports;
(c) The amounts or rates and other municipal benefits agreed to by comparable users of the airport in a contract, lease, or permit; and,
(d) The revenue needs of the airport.
(2) If the city manager determines that one or more of the factors listed in subsection (1) of this section is irrelevant or inapplicable, the city manager shall notify the mayor and council of that determination.