Abstract: The present invention is a system that provides complex pricing for plural electronic exchange transaction events such that individual events, accumulated events, cross product events and non-transactional events can be priced. The system dynamically prices the electronic exchange events responsive to an electronic exchange event, ruled based pricing plan that includes a decision network with conditionally executed pricing algorithms. The pricing includes detail pricing and summary pricing. The algorithms include of single unit, double unit, taper discount, tier charge, tier discount, percent, flat, allowance, minimum, maximum, accumulation, threshold, multi-unit and taper charges.