A method, system and software product allows the seller of products or services to offer variable pricing while still basing that pricing on the quantity selected by a buyer. It also provides the seller with the ability to adjust the per unit price of any given product or service along a calculated adjustment...http://www.google.com/patents/US7979318?utm_source=gb-gplus-sharePatent US7979318 - Method, system and software product for creating variable pricing
