The Bread Boutique, a popular local bakery, uses $2,000$ bags of flour per week. Its key supplier for flours and grains charges a $$400$ delivery fee for each order. The head baker wants to buy as much flour at a time as he can but also wants to limit the total annual inventory costs. He knows his holding costs are roughly $20$ percent of the purchase price, which is around $$50.$ At the economic order quantity for flour what are the annual ordering costs? $($Round to $2$ decimal places$)$