Systems and computer-readable media for generating dynamic pricing rules to govern offered price-volume break points. Initial target price-volume break points are offered during a time window. For each transaction of the product, transaction information including the transacted price, quantity, and identifying information of the purchaser is received. Based on a sales trend determined from the transaction information, the time window and the offered price can be updated. After the expiration of the time window, redemptions are generated for each purchaser of the product, based at least in part on the final quantity sold during the time window and the offered price-volume break points. A market price elasticity function is interpolated from observed market price elasticities at each price-volume break point. Using the market price elasticity function, dynamic pricing rules are optimized and updated and then used to calculate updated price-volume break points to be offered for the product.