The shoppers are on your site, they are interested in the product, but the design of your shopping cart is causing you to lose many if not most of your customers. Sound familiar? It should. Recent research indicates that the average e-commerce site is losing near 75 percent of its shoppers during shopping cart phase of a transaction. While that statistic is probably influenced upward by a few terrible websites, the fact remains that most sites are losing huge numbers of customers by…