though the florida lottery's expenses and payouts vary from year to year, approximately 50 to 60 percent of its net revenue makes up the games' prize pools, 30 to 40 percent is transferred to the educational enhancement trust fund, 6 percent is paid to retailers in the form of commissions, 2 percent is paid to the lottery's on-line and scratch-off ticket vendors, and the remaining 2 percent covers operational costs, including advertising.