prompt: Elsa and her sister watch an opera show every year at Central City Opera. Last year, opera seating cost $85 per ticket. This year, it costs $102. What is the percent increase in the cost of each ticket?
messages.content: Elsa and her sister watch an opera show every year at Central City Opera. Last year, opera seating cost $85 per ticket. This year, it costs $102. What is the percent increase in the cost of each ticket?
messages.role: user
messages.content: The ticket price increase is $102 - $85 = $<<102-85=17>>17
  So there is 17/85 x 100% = 20% increase of price.
  #### 20
messages.role: assistant