In the event a referendum levying an assessment is passed, the commissioner, within 30 days, shall notify in writing stockyards and small ruminant selling points that on or after the date designated in the notice, which may not be less than 30 nor more than 60 days after the mailing of the notice by the commissioner, the amount of the assessment shall be fifty cents ($.50) per sheep or goat and shall be deducted from all sales. On or before the tenth day of each calendar month, all assessments so deducted by sellers shall be remitted to the commissioner, less two percent of the total assessment deducted, which may be retained by the livestock broker to compensate him or her for the expense of collecting and remitting the assessments. The books and records of all stockyards shall at all times during regular business hours be open for inspection by the commissioner or his or her duly authorized representatives or agents for the purpose of ascertaining the accuracy of the amounts remitted as required by this section. The commissioner may deduct two percent of all sums remitted to him or her under this section to defray the expenses incident to collection and administration of this article. All amounts deducted by the commissioner shall be paid into the State Treasury to the credit of the Agricultural Fund.