Updace overview

tipper.rb

class Tipper
  TAX = 0.05
  
  def initialize(amount:, discount_percentage: 0, tip_percentage:)
    @amount = amount
    @discount_percentage = discount_percentage
    @tip_percentage = tip_percentage
  end
 
  def total
    tax      = amount * TAX                           # change to `tax = amount`
    discount = amount * (discount_percentage / 100.0)
    tip      = amount * (tip_percentage / 100.0)      # tip = amount * (tip_percentage / 100.0)
  
    amount + tax - discount + tip
  end

  private
  
  attr_reader :amount, :discount_percentage, :tip_percentage
end