Every licensee conducting race meetings under this part, shall pay to the ex-officio treasurer of the racing commission for the use of the commission, a tax in an amount equal to four percent of the total contributions to all pari-mutuel pools conducted or made on any race track licensed under this part. The commission of a licensee on a pari-mutuel pool shall in no event exceed 18 percent of the amount contributed to the pari-mutuel pool, which amount shall include the four percent tax heretofore provided. After the deduction of the four percent for the use of the commission and the percentage commission of the licensee, the remainder of the total contributions to each pool shall be divided among and redistributed to the contributors to such pools betting on the winning dog. The amount of each redistribution for each winning bet placed shall be determined by dividing the total amount remaining in the pool after the deductions hereinabove provided for by the number of bets placed on the winning dog. Each redistribution shall be made in a sum equal to the next lowest multiple of 10. The licensee is entitled to retain the odd cents of all redistributions to be known as the breaks to the dime, and all monies represented by any unclaimed, uncashed, or abandoned pari-mutuel tickets known as outs money. Under the pari-mutuel system of wagering herein provided, the licensee shall be permitted to provide separate pools for bets to win, place, and show and also a daily double pool, a quiniela pool, double quiniela pool, trifecta pool, and such other bets and pools as the commission may from time to time allow. Each pool shall be redistributed separately as herein provided. Should there be no ticket bet on the winning dog, the entire pool shall be divided among the holders of tickets on the dog running next in line until the pool has been redistributed to the contributors. The licensee shall be required to use a totalizator machine to record the wagering and compute the odds. Rules and regulations governing the operation of each of the pools shall be set out in book form by the racing commission. The licensee shall collect from each person attending the race meeting under this part 15 percent of the established admissions price or ten cents ($.10), whichever sum is greater, as an admission tax. Licensees shall make payment of such taxes to the ex-officio treasurer of the racing commission every tenth calendar day of any and every race meeting, which payment shall be accompanied by a report on the races covered by such report and such other information as the commission may require. Every license issued by the commission shall contain the terms, conditions, provisions, percentage commissions of licensee, and tax as set forth in this section, which such terms, conditions, provisions, percentage commission of licensee, and tax shall not be altered or changed during the term of such license without the mutual consent of the commission and licensee.