(a)
At the hearing the director shall consider any relevant matters that may be presented.
(b)
At or after the conclusion of the hearing, the director shall determine whether or not the proposed scale is reasonable. If the director determines that the proposed scale is reasonable, the director shall approve it and thereafter that scale of charges shall be the standard charge for unloading any farm product in the market. If the director determines that the scale is unreasonable, the director shall adjust the scale or any item of the scale so that the scale is not unreasonably higher than the prevailing rate for similar work which is performed under similar conditions. After this adjustment, the scale shall be the standard charge for unloading any farm product in the market.
(c)
In making the determination and, if necessary, the adjustment required in subdivision (b), the director shall compare the scale proposed by the union with any available information relating to the charges for similar work which is performed under similar conditions in the city in, or for, which the market is operated. The director may take into consideration any rates set by the Public Utilities Commission for the performance of work of a similar nature.