One company exports 100 cases of goods to London. The volume per case is 40cm x 30cm x 20cm, and the gross weight is 30kg. On the List of Classification of Commodities, goods fall within the scope of class 10, and the freight is based on W/M. On the Freight Tariff( China-London) , the basic freight rate is USD222, with 10% port surcharges. How much is the total freight?