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Percent of change

Finley's pumpkin had a mass of

6

5

(\mathrm{kg})

before he carved it. After it was carved, the pumpkin had a mass of

3.9 \mathrm{~kg}

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What was the percent decrease in the mass of the pumpkin?

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\%

Haruka hiked several kilometers in the morning. She hiked only

6

kilometers in the afternoon, which was

25 \%

less than she had hiked in the morning.

\newline

How many kilometers did Haruka hike in all?

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The family size bottle of sunscreen holds

12

\mathrm{fl} \mathrm{oz}

) of sunscreen. The regular bottle holds

75 \%

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How many fewer fluid ounces does the regular bottle of sunscreen hold?

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Mafalda has a save percentage of

0

738

so far this hockey season. Last season, her save percentage was

0

585

\newline

How much has Mafalda's save percentage improved?

A new shopping mall records

120

total shoppers on their first day of business. Each day after that, the number of shoppers is

10 \%

more than the number of shoppers the day before.

\newline

What is the total number of shoppers that visited the mall in the first

7

\newline

Round your final answer to the nearest integer.

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Percent transmittance is the percent of light that passes through an object. If

780

watts per square meter

\left(\frac{\mathrm{W}}{\mathrm{m}^{2}}\right)

of light strike the roof of a greenhouse, and the roof has an

85 \%

transmittance, how many

\frac{\mathrm{W}}{\mathrm{m}^{2}}

of light pass through the roof?

When a grizzly bear hibernates, its heart rate drops to

10

beats per minute, which is

20 \%

of its normal value. What is a grizzly bear's normal heart rate, in beats per minute, when not hibernating?

John is a quarterback. This year, he completed

350

passes, which is

70 \%

of all the passes he's thrown this year. How many passes has John thrown this year?

An empty pool has the capacity to hold

2700

\left(\mathrm{ft}^{3}\right)

of water. A particular hose fills this pool with water at a rate of

25 \mathrm{ft}^{3}

per minute. If the hose is placed into the empty pool and turned on, approximately what percent of the pool will be filled with water after

1

\newline

1

\newline

\mathbf{1 0 \%}

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44 \%

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56 \%

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93 \%

During an activity analysis, a human resources manager determined that an employee spent

1

7

hours making work calls one week, which was

4 \%

of the employee's total work hours for the week. How many hours did the employee work?

A chef has a large container full of olive oil. In one night, after he used

25

quarts of olive oil,

35.9 \%

of the full container of olive oil remained. To the nearest whole quart, how many quarts of olive oil remained in the container?

In a random sample of Amir's customer feedback,

96 \%

of customers gave Amir positive feedback. At this rate, how many of Amir's

900

customers gave him positive feedback?

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?

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?

Zaid and Matias, two farmers, constructed a

792

-foot fence around their very large garden. If Zaid constructed

20 \%

more of the fence than Matias did, how many feet of the fence did Zaid construct?

What is the percent of change from

12

21

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\newline

75 \%

\newline

9\%

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75\%

\newline

9\%

...