A method and system for calculating savings routes for display on a portable computing device (PCD) are described. The method includes receiving at least one of a product category and a service category from an operator of a PCD. The PCD may also receive a destination address. With this information, circle of influence data based on an offer for at least one product or service corresponding to the product category or service category may be generated and provided to the PCD. The circle of influence data may impact edge weights of a graph search algorithm. The graph search algorithm solves a single-source shortest path problem for a graph with non-negative edge path costs. The circles of influence in combination with the graph search algorithm allow a PCD to calculate one or more savings routes based on a start point and the desired destination address provided by the operator of the PCD.