Resources

Resources

Percent of change

What is the percent of change from

20

14

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30\%

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6\%

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30\%

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6\%

What is the percent of change from

5,000

7,000

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40\%

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39\%

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39\%

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40\%

What is the percent of change from

16

20

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25\%

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4\%

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4\%

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25\%

What is the percent of change from

800,000

1,000,000

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25\%

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30\%

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30\%

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25\%

What is the percent of change from

200,000

10,000

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95\%

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112\%

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112\%

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95\%

What is the percent of change from

400,000

700,000

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75\%

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75\%

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67\%

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67\%

What is the percent of change from

500,000

700,000

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4\%

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40\%

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40\%

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4\%

What is the percent of change from

40

44

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10\%

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15\%

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10\%

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15\%

What is the percent of change from

5

9

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84\%

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84\%

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80\%

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80\%

What is the percent of change from

96

24

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75\%

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68\%

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75\%

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68\%

What is the percent of change from

14

21

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50\%

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55\%

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55\%

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50\%

What is the percent of change from

4

2

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100\%

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100\%

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50\%

\newline

50\%

What is the percent of change from

5

6

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20\%

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22\%

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20\%

\newline

22\%

What is the percent of change from

80

20

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60\%

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60\%

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75\%

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75\%

What is the percent of change from

5

6

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1\%

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1\%

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20\%

\newline

20\%

What is the percent of change from

100

91

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9\%

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9\%

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14\%

\newline

14\%

What is the percent of change from

2

1

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1\%

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50\%

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50\%

\newline

1\%

What is the percent of change from

800,000

1,000,000

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20\%

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25\%

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25\%

\newline

20\%

What is the percent of change from

10

8

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20\%

\newline

25\%

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20\%

\newline

25\%

What is the percent of change from

500,000

50,000

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112\%

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112\%

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90\%

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90\%

Today, Bonnie bought

17

apples from her local farmers' market. That number is

70\%

higher than the number of apples Bonnie bought a few weeks ago. How many apples did Bonnie buy then?

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A software company in Bluepoint currently bills clients

\$297

per hour for work done by its consultants. That is

1\%

less than the company used to charge before adjusting its rates. What was the previous hourly billing rate?

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\$

Judith has been keeping an eye on an emerald ring she likes. She just noticed that it has been marked down to

\$4,195

50\%

less than its original price. What was the original price of the ring?

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\$

Trisha recently played

77

consecutive games of soccer. That is

30\%

shorter than her previous record for consecutive games. How many games was that?

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____ consecutive games

The cheerleading squad at Kingwood High School currently has

21

members. That is

5\%

more than were on it with the old coach. How many members were on the squad before?

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This year's student population at Griffin Elementary School is

1,029

students. That is

5\%

larger than it used to be, prior to rezoning. What was the previous student population?

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This year, Owen's Solar Systems, a growing solar panel manufacturer, hired

96

new employees. That is

20\%

more than were hired last year. How many new employees were hired last year?

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____ new employees

The PTA at Danville High School hosts a dinner and auction every year to raise money for music and art programs. This year's event raised

\$72,837

10\%

less than last year's. How much was raised last year?

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\$

Mandy is looking over her credit card statements from the past couple of months. There is a balance of

\$8,790

this month, which is

50\%

less than last month. What was the balance last month?

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\$

This year's student population at Bowman Elementary School is

296

students. That is

20\%

smaller than it used to be, prior to rezoning. What was the previous student population?

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The students at Newton High School have been planting trees as part of an ongoing service project. This month, they averaged

6

trees per participant. That is

25\%

fewer trees than their average the last time they did it. What was their average last time?

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Alexandra is trying to drink more water, so she has been keeping a log of how much water she drinks. Yesterday, Alexandra drank

12

ounces of water. That is

25\%

less than she drank two days ago. How much water did Alexandra drink two days ago?

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The FAA tracks average flight delays. It found that, this year, a particular airline has an average flight delay of

37

minutes. That is

85\%

longer that the airline's average for the previous year. What was its average flight delay last year?

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A magician is training for an underwater escape trick. Using a new technique, she can hold her breath for

57

seconds. That is

50\%

more than she was able to do when she first tried. How long could the magician hold her breath when she first tried?

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The FAA tracks average flight delays. It found that, last year, a particular airline had an average flight delay of

10

minutes. So far this year, the airline has an average that is

50\%

longer. What is the current year's average?

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\_\_\_\_\_

Last quarter, a local gym had

95

members. This quarter, with a change in its rates, it has

20\%

fewer. How many members are there now?

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Mrs. Garrett is interested in a particular bracelet. Its original price was

\$34

, but it is now marked down by

50\%

. What is the price of the bracelet now?

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\$

For a school project, Shawn is investigating cell phone use in his hometown, Springtown. It turns out that residents of Springtown used their cell phones for

2,930

minutes last year. It also turns out that they used them

10\%

less this year. For how many minutes did the residents of Springtown use their cell phones this year?

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Josiah is trying to drink more water, so he has been keeping a log of how much water he drinks. Josiah drank

60

ounces of water two days ago. Yesterday, he drank

65\%

more than that amount. How much water did he drink yesterday?

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During summer vacation, Jennifer read, on average,

48

pages per night. Once she returned to school, she averaged

12

pages per night. What is the percent of decrease in Jennifer's reading?

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\%

5

gallons of gas last week. This week, Kylie ended up needing

20\%

less. How much gas is that?

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Last year, a lighting supplier called Bright Idea shipped a total of

7,400

lamps to its distributors. This year, the supplier shipped

79\%

more than that. How many lamps did Bright Idea ship this year?

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The depth of a lake in Georgetown changes over time due to rainfall and evaporation. A few months ago, the depth was

1,000

feet. Currently, the lake is

2\%

less deep. What is this year's depth?

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\_\_\_\_\_

At the beginning of the week, josh had

32

computer games,

133\%

as many computer games as peter had. By the end of the week, josh gave

25\%

of his computer games to peter. how many computer games did josh and peter each have by the end of the week?

In a particular research database, the number of indexed genetics articles had increased by an average of

307

articles per year for several years. At the end of that time period, there were

6000

genetics articles indexed. Since then, the number of articles has increased by

8\%

annually. To the nearest whole number, how many more genetics articles are there after

2

years of this increase than if the growth rate had not changed?

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On Monday, Harry had

75\%

as many toys as Teddy did. On Tuesday, Harry acquires

32

more toys, and Teddy acquires

15\%

as many toys as he had on Monday. If Harry and Teddy now have the same number of toys, how many toys did Harry have on Monday?

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A small pendulum is released in water. The maximum height that the pendulum reaches each time it swings decreases over time. Every

180

seconds, the pendulum's maximum height is reduced by

90\%

. If the pendulum has been swinging for

360

seconds and now reaches a maximum height of

0.031

centimeters, what was the maximum height of the pendulum, in centimeters, when it was initially released?

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Last year at a certain high school, there were

100

ninth graders on the honor roll and

150

tenth graders on the honor roll. This year, the number of ninth graders on the honor roll increased by

17\%

and the number of tenth graders on the honor roll increased by

24\%

. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).

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1945

2008

, one country's per capita gross domestic product (GDPPC) increased about

6\%

per year, ending at

\$19,600

. For the next few years, the growth slowed to an increase of about

\$1,300

per year. To the nearest dollar, how much less did the GDPPC grow during the next

6

years than it would have if it had maintained its earlier growth rate?

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\square

A swimming pool had

2.5

million liters of water in it. Some water evaporated, and then the pool only had

2

million liters of water in it.

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What percent of the water evaporated?

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\square

\%

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