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Percent Increase/Decrease
Section 1.5
Note Slide
Percent Increase – A Shortcut
%)%100(  OldNew
Remember how we used this to find the new value in section 1.11?
What would we do if we wanted to find the % increase?
Note Slide
Percent Decrease – A Shortcut
%)%100(  OldNew
Remember how we used this to find the new value in section 1.11?
What would we do if we wanted to find the % decrease?
Note Slide - Finding the Percent
change
Old
OldNew
%

Video Slide
Watch a Video
http://www.youtube.com/watch?v=TpZ
XX-GsmB0
Find the percent increase when a
number changes from 110 to 440.
Group Work Section 1.5
Remember to use complete sentences!
 Explore #1-4
Homework Section 1.5
 Text book page35 #1-6
 My Math Lab section 1.5

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