; or (ii) an amount equal to a percentage of, to be determined by the Secretary, but to not to exceed 5 percent of, adjusted gross receipts calculated under subparagraph (F). (E) Calculation of fees for transitional permits and long-term permits Subject to subparagraph (G), if the Secretary elects to charge a fee for a special recreation permit described in section 802(13)(A)(iv), the Secretary shall charge the recreation service provider, based on the election of the recreation service provider— (i) the applicable predetermined fee established under subparagraph (B); or (ii) an amount equal to a percentage of, to be determined by the Secretary, but not to exceed 3 percent of, adjusted gross receipts calculated under subparagraph (F). (F) Adjusted gross receipts For the purposes of subparagraphs (D)(ii) and (E)(ii), the Secretary shall calculate the adjusted gross receipts collected for each trip or event authorized under a special recreation permit, using either of the following calculations, based on the election of the recreation service provider: (i) The sum of— (I) the product obtained by multiplying— (aa) the general amount paid by participants of the trip or event to the recreation service provider for the applicable trip or event (excluding amounts related to goods, souvenirs, merchandise, gear, and additional food provided or sold by the recreation service provider); and (bb) the quotient obtained by dividing— (AA) the number of days of the trip or event that occurred on Federal recreational lands and waters covered by the special recreation permit, rounded to the nearest whole day; by (BB) the total number of days of the trip or event