Help students master percent increase and decrease—and know when solutions make sense—with this step-by-step Algebra 1 video lesson. Learners practice reversing percent changes to find original values, computing multi-step percent changes, and modeling constraints using simple equations to judge viable real-world answers. This video pairs seamlessly with the companion “Mastering Percent Change: Real-World Practice with Increases and Decreases” worksheet (sold separately on Teachers Pay Teach