cash register challenge

light = 5
medium = 7.50
bold = 9.75


puts "How much money does the customer owe?"

owed = gets.chomp.to_f

puts "How much money did the customer give you?"

provided = gets.chomp.to_f

change = provided - owed

if change >= 0
  puts "Change due is: \n$#{'%.2f' % change} due \n at #{Time.now.strftime('%m/%d/%y %I:%M %p')}."
else
  puts "Not enough money given by customer!"
  exit
end