In this lesson, students get practice writing expressions for percentage increase or decrease using only multiplication. They explore tape diagrams and rewriting equivalent expressions using the distributive property to develop skills to write percent change expressions. A repeated percentage increase or decrease is an exponential change. Knowing how to express percent change using multiplication only will help students represent exponential change in upcoming Algebra 1 lessons involving compound interest and population changes. When students recognize that the distributive property can be used to rewrite an expression, they are noticing and making use of structure (MP7).