conversations.from: human
conversations.value: Can you explain how to solve this math problem: Paul made two bank transfers of $90 and $60 respectively. A service charge of 2% was added to each transaction. If the second transaction was reversed (without the service charge), what is his account balance now if it was $400 before he made any of the transfers?
conversations.from: assistant
conversations.value: 2% of $90 is (2/100)*$90 = $1.8
  2% of $60 is (2/100)*$60 = $1.2
  The second transaction was reversed without the service charge so only a total of $90+$1.8+$1.2 = $93 was deducted from his account
  He will have a balance of $400-$93 = $307