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Article that explains how to calculate percent change. Also provides example relating to murder statistics.
Percentage Change Calculator
This calculator allows students to type in an old and new number and calculate the percent change. This site also offers a good percent change tutorial.
Grade 8 Easy Worksheet
This site allows teachers to customize their own worksheets on a broad list of math concepts. Percent change worksheets are under 8.3i.
Excel Basics: Data Analysis
This 10 minute video shows students how to use Sort, Subtotals, Filter, and Pivot Tables. The site also provides a link where students can find the Excel sheet that the instructor is working on.
Percent of Increase or Decrease
This site familiarizes students with percent increase/decrease using 41 word problems. Students may try the questions on their own, but seek step-by-step solutions if they get stuck or need to check ...
Various practice problems relating to logs and exponents. (Including graphing problems). Solutions provided. Scroll to bottom for relevant links.