Lottery payouts will be the way lottery winnings are distributed. Typically, lotteries spend around 50-70% of stakes (turnover) back again to players. The rest is then kept for administration costs and charitable donations or tax revenues. In gambling terminology lottery payouts will be the exact carbon copy of RTP or returns to players. The lottery operator's gross margin may be the opposite of RTP.
Actual payouts after a draw will change from what payouts are advertised before a draw, based on whether the jackpot is usually hit or not. Typically jackpot quantities that aren't hit or paid are then rolled to another draw. In this sense, typical RTP or returns to player percentages will change with how big is the jackpot. It could happen that after a number of rollovers, a jackpot becomes that huge that there is actual 'positive RTP; with a lottery ticket, i.e. in the event that you were to buy each and every ticket you would make money after your ticket costs. This will of course also depend on your own likelihood of sharing or not sharing the jackpot with another player, any taxes payable plus whether you are taking the money or annuity option or not (as available).
In america, large lottery winnings generally are advertised as an annuity amount, paid in 20 or even more installments; generally, a cash option is usually obtainable. The cash option in america could be 40-60% of the advertised annuity amount.
Legislation varies by US jurisdiction; many statutes specify the very least payout percentage. To create lotteries competitive, some jurisdictions increase payout percentages versus those of a neighboring lottery. The percentage changes tend because of competition from illegal numbers on daily numbers games.