This Instructional Activity is a part of the Lesson 14, Unit 3, Grade 6. In this activity, students solve percentage problems in the context of shopping. Students consider how discounts described as percentages translate into reduced prices and the other way around. (In other words, they find A and C where A% of B is C). In each problem, students need to first determine what value is associated with 100% and reason accordingly. Students may choose to use double number lines or tables or simply reason without using a particular representation.