NDN meaning in Business ?

99 Cents Only Stores (also branded as The 99 Store) is an American price-point retailer chain based in Commerce, California. It offers "a combination of closeout branded merchandise, general merchandise and fresh foods." Previously, the store offered all products at 99¢ or less. Most products are still priced at 99¢ or less, but many products are now sold at higher prices. Founded by Dave Gold in 1982, there are stores located in California, Arizona, Nevada, and Texas. The company also operates Bargain Wholesale, which sells wholesale to retailers across the United States and exports to more than 15 countries from showrooms in Los Angeles. It also exhibits at trade shows in Las Vegas and Chicago.