The payout percentages of most slots games usually include the Jackpot, especially in non-progressive games. So it is important to ensure you are eligible for the jackpot on every roll. Many slots games require that you bet the maximum number of coins in order to be eligible for the jackpot. If this is the case, be sure to bet the max each time. Every bet you make where you are not eligible for the jackpot is a wasted chance at winning all your money back. .