Minimum raise: the Raise amount must at least equal the previous Bet or Raise in the same round.
For instance, if the first player to act bets $50, then the second player must raise a minimum of $50 (a total bet of $100).
Maximum raise: Equals the size of the pot. The size of the pot equals the sum total of the Pot in the middle + all bets on the table + the amount the active player must call before raising.
For instance, if the pot in the middle is $200 and the first player to act in the round bets $150 and the next player calls $150, the third player then has a maximum eligible total bet of $800. This amount is his $150 call and $650 raise.
The $650 maximum raise is equal to the $200 pot + first player's $150 + second player's $150 + his own call of $150.

Betting Methods
24poker.com offers three betting methods: Bet button - clicking the bet button will display the minimum amount you may bet or raise.
Bet box- the bet box is a textbox where you can enter the exact amount you wish to bet or raise. This amount will then appear on the Bet Button. Click the Bet Button to place your bet.
The slider- the slider is a device you may use with your mouse to increase or decrease the amount of a bet or raise. Just drag the bar on the slider to the amount you wish to bet or raise. When this amount appears on the bet button, click it to place your bet.
Each Pot-Limit table has a Maximum Buy-In amount.
The maximum buy-in amounts at 24poker.com currently stand at $25, $50 and $100. 24poker.com currently offers three different maximum buy-in amounts of $25, $50 and $100.
This ensures that all players have an opportunity to be competitive at No Limit without having to compete against players with thousands of dollars at their disposal.