the code that fulfills 100% of the expected value for the Carpaccio exercise,

ElephantCarpaccio.scala

import scala.io.StdIn

object ElephantCarpaccio extends App {

  val nbHats = StdIn.readLine("nbHats>").toInt
  println(s"Selling $nbHats items")

  val price = StdIn.readLine("price>").toFloat
  println(s"Price per item is set to $$$price")

  val withoutTaxes = nbHats * price
  println(s"Raw price: $$$withoutTaxes")

  val discount = withoutTaxes match {
    case p if p < 1000  => 1.0
    case p if p < 5000  => 0.97
    case p if p < 7000  => 0.95
    case p if p < 10000 => 0.93
    case p if p < 50000 => 0.90
    case _              => 0.85
  }

  val withDiscount = withoutTaxes * discount
  if (discount < 1.0)
    println(s"Discounted price: $$${withDiscount.}")

  val code = StdIn.readLine("state>")
  val taxes = Map("UT" -> 1.0685, "NV" -> 1.08, "TX" -> 1.0625,
                  "AL" -> 1.04, "CA" -> 1.0825)
  val localTax = taxes.getOrElse(code, 1.0)
  println(s"Taxes are set to $localTax")

  val finalPrice = withDiscount * localTax
  println(s"Final price: $$$finalPrice")

}