This product includes a 16-page foldable with interactive practice of the following concepts: the percent proportion, percent of change, discount and sale price, and sales tax and total price. A 56-page PowerPoint accompanies the foldable with slides to develop understanding and slides that are answer keys for the foldable . Also included are two graphic organizers that assist in the development of understanding of the interactive relationships of the concepts of discount, sale price, sales tax,