Take a bet of 100 rupees as an example
Bet 100 rupees--if you lose, call x3 times, bet 300 rupees
Bet 300 rupees--if you lose, call x3 times, bet 900 rupees
Bet 900 rupees--if you lose, call x3 times, bet 2700 rupees
Bet 2700 rupees--if you lose, call x3 times, bet 8100 rupees
If 8100 rupees wins, you can get a profit of 8100-2700-900-300-100=4100.
If you start with 100, you need to keep 12100 rupees
Before prediction, please make sure there is enough money in the account. When we use the x3 betting method to place bets, no matter how many periods you lose, as long as you follow up with the x3 bet and place a bet at the end, you can earn back the lost amount and get the profit brought by the high bet.