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).
In order to calculate your potential payout you simply multiply your stakes (the amount of money you wagered) by the odds. For example, if you betR$100 on the Pistons beating the Knicks at 2.25 odds, your total potential payout would beR$225 ($100 x 2.25).