### Percentage growth rates. Elasticity of demand (3)

Calculus: Calculating the percentage growth rate (also known as the relative rate of change); calculating the percentage growth rate using a logarithmic derivative. Elasticity of demand; relation between elasticity of demand and revenue This is a recording of a tutoring session, posted with the students' permission. These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website: http://www.freelance-teacher.com/videos.htm For a printable document containing the problems discussed in this video series, go to my website. For a list of all the available video series, arranged in suggested viewing order, go to my website. For a playlist containing all the videos in this series, click here: http://www.youtube.com/watch?v=g92b6Kilukg&feature=PlayList&p=670E6753D5768796&index=0&playnext=1 (1) Calculating the percentage growth rate (2) Calculating the percentage growth rate using a logarithmic derivative (3) Continued. Elasticity of demand (4) Relation between elasticity of demand and revenue (5) Continued (6) Calculating the percentage growth rate using a logarithmic derivative (7) Continued

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11:00