conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: A luxury perfume costs $1200. The store owner decided to increase its price by 10% so that he could earn more profit. Few weeks had past but the perfume was still not sold. So, the owner decided to lower the price by 15%. By how much was the final price lower than the original price?
conversations.from: assistant
conversations.value: There was a $1200 x 10/100 = $120 increase of the original price.
  So, the perfume was priced for $1200 + $120 = $1320.
  Then, 15% of the new price is $1320 x 15/100 = $198.
  So, the final price is now $1320 - $198 = $1122.
  Therefore, the final price is $1200 - $1122 = $78 lower than the original price.