conversations.from: human
conversations.value: A store marks a book 30% above the cost. But during a sale, a 10% discount was given. If the book costs $50, what is the percent profit?
conversations.from: assistant
conversations.value: The store made a $50 x 30/100 = $15 profit for selling it 30% above the cost.
  So, the book was sold for $50 + $15 = $65.
  During a sale, the book’s selling price decreased by $65 x 10/100 = $6.50.
  So, the book was sold for $65 - $6.50 = $58.50.
  There was $58.50 - $50 = $8.50 profit after the discount.
  Therefore, the percent profit is $8.50/$50 x 100% = 17%.