Slippage is the concept of being affected by the difference in price, between the point at which you send your transaction and the moment it gets mined (completed). As an example, imagine swapping your ETH for SUSHI in an attempt to exit an ETH dump and enter a SUSHI pump. However, while waiting for your transaction to get mined, the price of ETH drops by 1%, while SUSHI went up by 1%: this would incur a 2% slippage. If you had set your slippage below this amount, the swap would fail!
It's useful to think of setting slippage percentages like this: you are effectively inputting a minimum quantity of tokens you will receive from the swap.
Slippage is the concept of being affected by the difference in price, between the point at which you send your transaction and the moment it gets mined (completed). As an example, imagine swapping your ETH for SUSHI in an attempt to exit an ETH dump and enter a SUSHI pump. However, while waiting for your transaction to get mined, the price of ETH drops by 1%, while SUSHI went up by 1%: this would incur a 2% slippage. If you had set your slippage below this amount, the swap would fail!
It's useful to think of setting slippage percentages like this: you are effectively inputting a minimum quantity of tokens you will receive from the swap.