B ELL W ORK Find the percent of change and tell if it is increase or decrease: The original price for shoes were $ They are now on sale for $ Round to the nearest whole percent. 27% decrease The temperature at 5am was 32 degrees. At noon is was 44 degrees. 37.5% increase How much tax would you pay for a coat that costs $48.50? Sales tax is 6%. What is the total cost of the coat with sales tax? $2.91 tax $51.41 total

Graphs

Change the percent to a decimal and multiply by the total number of students. 65% 25% 10% Favorite Foods Of 300 Students In a recent survey, 300 students were asked if they preferred pizza, tacos, or hamburgers. hamburgers pizza tacos How many students preferred hamburgers? 65% =.65 x students chose hamburgers How many students preferred tacos? How many students preferred pizza? 10% =.10 x students prefer tacos 25% =.25 x students voted for pizza

Reptiles 10% Fish 15% Dogs 45% Cats 30% Favorite Pets In another recent survey, 60 students were asked which pet they preferred. 45% is how many dogs? 15% is how many fish? 30% is how many cats? 18 cats 10% is how many reptiles? 27 dogs 9 fish 6 reptiles Change the percent to a decimal and multiply by 60. Notice that the total number of pets equal 60 Also notice that the combined percents equal 100%

Favorite DrinkPeople Milk18 Soda8 Water16 Juice36 Other2 Add the people to find the total. ( ) 80 people To find the percent of people who prefer milk as their favorite drink, divide 18 by the total number of people. 18 ______ 80 = = 22.5% decimal percent fraction 22.5% people prefer milk as their favorite drink.

Favorite DrinkPeople Milk18 Soda8 Water16 Juice36 Other2 What is the percent of people who prefer soda? What is the percent of people who prefer water? 2.5 % YOU TRY… What is the percent of people who prefer other? 10% 20% 45% What is the percent of people who prefer juice?

Reading Friends Other Family Watching TV How Do You Prefer to Spend Your Time? 45 people chose reading 40 people chose with friends 125 people chose with family 143 people chose watching TV 147 chose other Finish the circle graph by filling in a percent for each category 9% 8% 25% 28.6% 29.4%

Find the angle measures of each section Hint: There are 360 o in a circle Food:.33 x 360 =118.8 o Rent:.25 x 360 = 90 o Savings:.06 x 360 = 21.6 o Clothes:.15 x 360 = 54 o Misc. :.21 x 360 = 75.6 o Hint #2: Check your answer by making sure that they add up to 360 o.

Practice: Circle Graph Worksheet