The Pro level (or P Level) you are in shows what percentage of in level profits you keep when you pass that level. All prizes are automatically transferred to your prize wallet as soon as they are earned.
P10: You keep 10% of your in level profits.
P20: You keep 20% of your in level profits.
P40: You keep 40% of your in level profits.
P80: You keep 80% of your in level profits.