The commission, on or before September 1st of each year, shall assess platform providers aggregate fees in the amount of the commission’s costs to produce the annual report required by Racing, Pari-Mutuel Wagering and Breeding Law 1367-a(6). The fee assessed against each platform provider shall be the commission’s cost multiplied by the aggregate gross gaming revenue of such platform provider’s associated skins for the period and divided by the aggregate gross gaming revenue of all skins in this State for the same period.