Thursday, December 9• No homework due today • Fill in planner: Today’s assignment is Practice 6-

8/6-9– Test will be on Wednesday, December 15 (Gold) or

Thursday, December 16 (Blue)• Bell Work

1. What is 25% of 38?2. 42 is 10% of what number3. What is 8% of 48?4. 300 is 90% of what number?

5.9

42084.3

84.3

Today’s Objective

• By the end of class today, SWBAT– find percent of increase– find percent of decrease– find markups – find discounts

Vocabulary

The percent a quantity increases or decreases from its original amount.

Example

6.9 8 6.1

amount of increase

original amount

6.1

8

2.0

20

%20

Your Turn

Example

5.22 5.7 15amount of increase

original amount

15

5.72

200

%200

Your Turn

Example

1250 1120 130amount of decrease

original amount

1301250104.04.10

%4.10

Your Turn

Vocabulary

The amount a store increases the price of merchandise

The percent of the store’s markupThe amount a store decreases the price of merchandise

The percent of the store’s discount

Example

%20 25.1

2.0 25.1

25.0

25.0$

Your Turn

Example

50.4 45.0 03.2

03.2 53.6 markup selling price

53.6$

Your Turn

Example

210percent of discount regular price

3.

63

00.63$

Your Turn

Example

2.percent of discount regular price

95.39

99.7regular price discount

99.796.31

96.31$

Example

100 20

%80

8.0

96.31

96.31$

Your Turn!