Do slot machines have a set payout percentage?

How are the odds of a slot machine changed by slot machine payout percentages A slot machine shall have a theoretical payout percentage that is between 84% and 100% 3 Once a facility is operational, the department shall: a Conduct slot banana If slot machines in general are set to payback 90% over a year, or over a lifetime, it is also true for the person who plays it (over year or

slot area188 I have read several places that the higher the denomination of the slot machine the higher the payout percentage For example: Penny: %