conversations.from: human
conversations.value: Jen buys and sells candy bars. She buys candy bars for 80 cents each and sells them for a dollar each. If she buys 50 candy bars and sells 48 of them, how much profit does she make in cents?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: It costs Jen 80 * 50 = 4000 cents to buy 50 candy bars.
  Since a dollar is 100 cents, she earns 48 * 100 = 4800 cents by selling 48 of them.
  Thus her total profit is 4800 - 4000 = 800 cents.