On PS3838 there is the Risk option and the Win option. Both refer to the amount of money wagered on a bet.

The Risk option indicates the amount of money you are willing to risk on your bet. This is your stake. The profit from your bet is calculated based on your stake and the odds of your selection. If your bet wins, you will receive your original stake back plus any profit earned.

The Win option indicates the amount of money you want to win from your bet. The system will then calculate the stake required to achieve that profit based on the odds of your selection.

The key difference between Risk and Win lies in whether your are indicating the amount you are willing to risk or the amount you want to win, with the system calculating the other parameter accordingly.