conversations.from: human
conversations.value: Find the answer to the math problem: Erwan went on shopping. He purchased a pair of shoes at $200 but discounted 30%, and two shirts at $80 each. Upon checkout, the cashier said that there is an additional 5% discount. How much did he spend after all the discounts?
conversations.from: assistant
conversations.value: The total discount of a pair of shoes is $200 x 30/100 = $60.
  He spent $200 - $60 = $140 for a pair of shoes.
  The total cost of two shirts is $80 x 2 = $160.
  The initial cost of his purchase is $140 + $160 = $300.
  He got an additional $300 x 5/100 = $15 discount upon checkout.
  Therefore, Erwan spent $300 - 15 = $285 after all the discounts.