Vocabulary: percentage, absolute change, relative change, absolute difference, relative difference, compared quantity, and reference quantity

Assignment: Read section 3A pages 132-149. Do exercises 5,7,9,10,16,21,25,39,41,44
Notes:

1. The three ways of using percentages: as a fraction, as a change, or to compare two values.
2. Of versus more than rule: If the quantity is P% more than the reference quantity, then it is
(100 + P)% of the reference quantity.
3. Percentages can be abused or used incorrectly to misrepresent results.

Skills you need to master in this section:
1.  Express fractions as percents and percents as fractions
2.  Solve percent problems
3.  Find absolute and relative change
4.  Use the of versus more than rule.
Percent Activity
Intro to Excel Activity