conversations.from: human
conversations.value: While passing by a store, Miley noticed that a bag that cost $150 last week is now on sale for $135. What percent is the discount?
conversations.from: assistant
conversations.value: The bag is now sold for $150 - $135 = $15 less.
  The discount is 15/150 = 1/10.
  Thus, the percent discount is 1/10 x 100% = 10%.