# Lesson 27 Percent of Change Not

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```					                     Lesson 2.7 Percent of Change Notes
Algebra 1                            Hartjen                               Page 1 of 1
Percent of Change                                 Example 2: The number of cruise ships in
____________________________________              North America increased 18% from 2000 to
____________________________________              2004. If there were 192 ships in 2005, how
____________________________________
many were there in 2000?
Percent of Increase
____________________________________
____________________________________
Percent of Decrease
____________________________________
____________________________________
Example 1: Determine whether each percent of
change is a percent of increase or a percent of
decrease. Then find the percent of change.        Example 3: Marta is purchasing wire and
a. Original: 20                                beads to make jewelry. Her merchandise is
Final: 23                                   \$28.62 before tax. If the tax is 7.25% of the
total sales, what is the actual cost for her
purchases?

b. Original: 25
Final: 17                                   Example 4: Since Tyrell has earned good
grades in school, he qualifies for the Good
Student Discount on his car insurance. His
monthly payment without the discount is \$85.
If the discount is 20%, what will he pay each
month?

c. Original: 66
New: 30

```
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