A system and method for aggregating demand is provided. At least one seller may sponsor a deal room to aggregate selling goods/services from a plurality of buyers. The demand aggregation system can include a dashboard for allowing the at least one seller to set up DealRooms, price curves, offers, products, customers, and/or customer groups, for example. The dashboard can include a plurality of wizards for configuring such information. The demand aggregation system can also include seller displays for notifying buyers of changes in prices relative to ship dates and times of order. The demand aggregation system can also include a predictive modeling and reporting function. An algorithm is employed to utilize product information to post a probability chart on a product price point.