Payback percentages

Payback percentages for slot machines differ depending on the machine and location. Typically, a machine will pay out ninety percent of the money inserted into it. This is a good figure for most types of slots, but there are exceptions. Video machines, for example, have a higher payback percentage than traditional slots. Higher payback percentages are better for players.

Generally, multi-game slot machine licensees are not required to record the weighted theoretical hold percentage, but it is beneficial in variance investigations. To calculate the weighted theoretical hold percentage, the machine’s meter readings are subtracted from the current meter reading. This result is then multiplied by the machine’s denomination.

Machines with multiple pay lines

When you play a slot machine, you’ll see a variety of pay lines. While 20 to 25 pay lines are most common, some have many more. The more pay lines you activate, the higher your chances of winning. There are different ways to use them, depending on the rules of the game.

Multiline fruit machines allow you to activate a specific number of paylines, or all of them. Some require you to bet on all paylines, and others don’t. There are also “243 ways to win” games, which do not require paylines and instead depend on symbols landing from left to right.


The symbols on slot machines can be anything from playing cards to fruit images. The lucky number seven is used in many machines, and represents pleasure and prosperity throughout the world. It is also the playing card of choice on many games. Fruits, like cherries, oranges, and lemons, can also be wild symbols and substitute for other symbols to complete a winning pay line.

Some slots feature multiplier wilds, which can combine to make a winning combination. When three or more of these appear, the payout is six times as large. Other symbols can trigger bonus features, including cash prizes and progressive jackpots. However, bonus symbols usually do not pay out.


The European Commission has proposed an interim regulation allowing for temporary relief from EU slot rules. The proposal would grant delegated powers to EU airports to adjust their slot use rates. These powers would apply until the end of the winter season 2023-24. But the European Commission says that this provision should only be used under extreme circumstances.

The Commission also wants to make the system more flexible to deal with any future crises. In order to restore the current slot regime, airlines will need to achieve at least 80% of their allocated slots. This is down from the current 64 percent “use it or lose it” slots rule, which was introduced in summer 2018. But despite the current increase in demand, airlines are still not using their slots efficiently enough.