Right column won't align correctly

class BankAccount
  attr_reader :name

  def initialize(name)
    @name = name
    @transactions = []
    add_transaction("Beginning Balance", 0)
    end

  def credit(description, amount)
    add_transaction(description, amount)
    end

  def debit(description, amount)
    add_transaction(description, -amount)
    end

  def add_transaction(description, amount)
    @transactions.push(description: description, amount: amount)
    end

  def balance
  balance = 0
    @transactions.each do |transaction|
      balance += transaction[:amount]
      end
    return balance
    end
  def to_s
    "Name: #{name}, Balance: #{sprintf("%0.2f", balance)}"
  end

def print_register
  puts "#{name}'s Bank Account"
  puts "-" * 40
  puts "Description".ljust(30) +"Amount".rjust(10)
  @transactions.each do |transaction|
    puts transaction[:description].ljust(30) + "\t" + sprintf("%0.2f", transaction[:amount]).rjust(10)
  end
  puts "-" * 40
  puts "Balance:".ljust(30) + sprintf("%0.2f", balance).rjust(10)
  puts "-" * 40
  end
end


bank_account = BankAccount.new("Jason")
bank_account.credit("Paycheck", 100)
bank_account.debit("Groceries", 40)
puts bank_account
puts "Register:"
bank_account.print_register