Writing Equations for Proportional Relationships: Finding Percent Change

This video tutorial explains how to write equations to represent proportional relationships between original and final amounts by calculating the percent change. It covers the correct method to find percent change, using examples of price changes in a bike. The tutorial also addresses common misconceptions and demonstrates how to model situations with both increases and decreases in value using algebraic manipulation. Key takeaways include understanding the percent change formula and applying it to real-world scenarios.

What steps are involved in finding the amount of change when the original price of a bike is $240 and the final price is $160?

Describe how to write an equation to represent the percent change when the final amount is less than the original amount.