They are American money line odds; for example, +200 signifies the amount a bettor could win if wageringR$100. If the bet works out, the player would receive a total payout ofR$300 ($200 net profit +R$100 initial stake).
The minimum 1xBet withdrawal amount varies depending on your chosen payment method, but it is usually around USD 1.50, which can be converted to local currency. On the other hand, there is no limit on the maximum withdrawal for Nigerian bettors.