Slots are usually programmed to payout 82 to 98 percent of what was wagered in the form of winnings. This percentage is known as RPT (Return to Player) or the Theoretical Payout Percentage. The minimum RTP for every slot machine depends on the regulations and laws of the state. In Nevada, for example, the minimum percentage is 75 percent, in New Jersey it is 83 percent and in Mississippi, its 80 percent.
The winning combinations and patterns on a slot machine, the amount it pays and the frequency of these payouts are carefully calculated and selected so they pay a specific fraction of money to the casino or the house while giving back the rest to the players. For example, a spin on the slot machine costs one dollar and it has an RTP percentage of 95. It can be calculated that over the long term, for example after one million spins, the game is going to give back $950,000 to players from the 1,000,000 dollars they have put into the slot. The house or the operator will keep the remaining $50,000.
The RTP is not the only important statistic in slots as the percentage of every payout on the games paytable is also important. For example, in any slot machine that has 12 different rewards in the paytable, the probability of every rewards equaling 0 percent except the jackpot can be quite deceptive. If the jackpot win is 4000 times the wager, then it would happen 1 time every 4000 spins and would make the game have an RTP of 100 percent, despite being a very dull game.
The table of the probabilities for any slot machine is called the Paytable & Reel Strips sheer, also known as PARS. PARS helps players understand the psychology of the slot machine. For instance, if the game has 13 payouts that range from 1:10 up to 2400:1 it will show that the 1:1 payout would happen once every 8 spins, the 5:1 would happen once every 33 spins while the 2:1 payout will happen once every 600 spins. The PARS sheet is usually confidential and developers and manufacturer never post them; however, there it is possible to find the PARS sheet of any of your favorite games posted online. Despite this, they are not of any real value to players as slot machines usually have 8 to 12 different programs that have varying payouts.
Slot machines are also known for the Taste. The Taste refers to a small amount of money the game pays every few spins to those who are seated at a slot machine to keep them engaged in the game. The logic is simple: if players keep losing their bets without winning any back, they will eventually grow bored and leave the game. The taste is usually the 1:1 or the 2:1 payout.