Here are the Classes:
Class S: You recive $30,000 for winnig a battle and $25,000 for losing a battle.
Class A: You recive $25,000 for wining a battle and $20,000 for losing.(You have to win 20 battles to go to Class S)
Class B: You recive $20,000 for wining a battle and $15,000 for losing a battle in this class.(You have to win 10 battles to get to Class A)
Class C: You recive $15,000 for wining a battle and $10,000 for losing a battle in this class.(You have to win 8 battles to get to next class)
Class D: You recive $10,000 for wining a battle and $6,000 for losing.(You have to win 6 battles to get to next class)
Class E: You receive $20,000 for wining a battle and $5,000 for losing a battle in this class.(You have to win 5 battles to get to next class)
Class F: You recive $10,000 for wining a battle and $5,000 for losing a battle in this class.(You have to win 6 battles to get to next class)