conversations.from: human
conversations.value: Can you give me some step-by-step instructions for this math problem: The price of a book was $400. If the book's price is decreased by 15% and then increased by 40%, what is the final price of the book?
conversations.from: assistant
conversations.value: When the price of the book is decreased by 15%, the total price decrease is 15/100*$400=$60
  The new price of the book becomes $400-$60 = $340
  The price of the book is then increased by 40/100*340 = $136
  The final price of the book is $340+$136 = $476