pdf Percent Increase and Decrease Assessment

This comprehensive assessment evaluates students’ understanding of percent change through a wide range of numerical and real-world applications. Students determine percent increase and percent decrease, calculate original values, interpret data from charts, and solve multi-step word problems involving percent growth and reduction.

The assessment begins with foundational percent change calculations such as determining the percent change from 200 to 300 or from 10 to 6. Students must identify whether each situation represents an increase or decrease and justify their reasoning. Additional problems involve large numbers (for example, 400,000 to 20,000) and decimal values (20.5 to 32.8), reinforcing precision across contexts.

Real-world applications require deeper reasoning. Students solve problems involving miles driven with a 25% increase, subscriber growth over consecutive years, wildlife population growth of 12%, calculating a restaurant bill including a 15% tip and 5% sales tax, and determining previous values given a percent decrease. A data analysis section requires students to interpret a rainfall graph and calculate percent changes between years, including large increases such as a 320% growth scenario.

Because the assessment integrates percent increase, percent decrease, percent-of-a-number reasoning, reverse percent problems, and data interpretation, it provides a well-rounded measure of percent change proficiency. It works well as a summative unit assessment, benchmark preparation tool, or cumulative percent review.

Skills Assessed

• Calculating percent increase and percent decrease

• Identifying increase versus decrease

• Solving reverse percent problems

• Interpreting percent change from graphs and tables

• Applying percent reasoning in real-world contexts

• Performing multi-step percent calculations

Classroom Use

• Summative assessment on percent change

• Unit test

• Benchmark preparation

• Cumulative percent review

Details

4 pages
Answer key included

ID# 0766