Resources
Testimonials
Plans
Sign in
Sign up
Resources
Testimonials
Plans
Home
Math Problems
Grade 7
Percent of change
Elizabeth just measured herself and found out she is
51
51
51
inches tall. The last time she measured, she was
50
50
50
inches tall. What percent taller is Elizabeth now?
\newline
_
_
_
_
%
\_\_\_\_\%
____%
Get tutor help
Ryan played
20
20
20
consecutive games of soccer without being taken off the field. Then, after a single game on the sidelines, he played another string of consecutive games, although this string was
30
%
30\%
30%
longer. How many consecutive games was that?
\newline
____ consecutive games
Get tutor help
After changing the amount of time he works, Samuel has begun earning a salary of
$
48
,
854
\$48,854
$48
,
854
. That is
48
%
48\%
48%
less than before. How much did Samuel's salary use to be?
\newline
$
\$
$
____
Get tutor help
This season, Westford Theater sold
6
,
149
6,149
6
,
149
tickets to Shakespearean plays. That is
30
%
30\%
30%
more than the theater sold last season. How many tickets to Shakespearean plays did the theater sell last season?
\newline
____ tickets
Get tutor help
For a school project, Lillian is investigating cell phone use in her hometown, Wildgrove. It turns out that residents of Wildgrove used their cell phones for
455
,
420
455,420
455
,
420
minutes last year. It also turns out that they used them
40
%
40\%
40%
less this year. For how many minutes did the residents of Wildgrove use their cell phones this year?
\newline
_
_
_
_
\_\_\_\_
____
minutes
Get tutor help
As part of an ongoing service project, the students at Danville High School recently spent an afternoon planting trees. They planted an average of
2
2
2
trees per participant. This month, they plan to do more planting, averaging
50
%
50\%
50%
fewer trees per participant this time. What will be the average this month?
\newline
____ trees
Get tutor help
Alvin's salary used to be
$
17
,
100
\$17,100
$17
,
100
. After changing the amount of time he works, Alvin has begun earning
41
%
41\%
41%
more. What is Alvin's salary now?
\newline
$
\$
$
____
Get tutor help
What is the percent of change from
4
4
4
to
7
?
7?
7
?
\newline
(A)
75
%
75\%
75%
decrease
\newline
(B)
75
%
75\%
75%
increase
\newline
(C)
3
%
3\%
3%
increase
Get tutor help
Last month, Thompson Trucking Company hauled
1.1
×
1
0
5
1.1 \times 10^5
1.1
×
1
0
5
pounds of produce. That was an increase from the month before, when they hauled
7.5
×
1
0
4
7.5 \times 10^4
7.5
×
1
0
4
pounds of produce. How much more produce did they haul last month than the month before? Write your answer in standard form. Do not use exponents.
\newline
____ pounds
Get tutor help
Kong took
15
%
15\%
15%
fewer seconds than Nolan took to complete his multiplication timed test. Kong took
85
85
85
seconds.
\newline
How many seconds did Nolan take?
\newline
□
\square
□
seconds
Get tutor help
A brand of cereal had
1
1
1
.
2
2
2
milligrams
(
m
g
)
(\mathrm{mg})
(
mg
)
of iron per serving. Then they changed their recipe so they had
1.8
m
g
1.8 \mathrm{mg}
1.8
mg
of iron per serving.
\newline
What was the percent increase in iron?
\newline
□
\square
□
%
\%
%
Get tutor help
Ben is
12
12
12
years older than Ishaan. Ben and Ishaan first met two years ago. Three years ago, Ben was
4
4
4
times as old as Ishaan.
\newline
How old is Ishaan now?
\newline
□
\square
□
Get tutor help
In March, William saved
$
60
\$ 60
$60
of his pocket money and spent the rest. In April, he saved
25
%
25 \%
25%
less and his spending increased by
10
%
10 \%
10%
. Given that he had the same amount of pocket money each month, how much was William's pocket money?
Get tutor help
After
5
5
5
months of saving money, Nikki had saved
$
350
\$350
$350
. She has now been saving for
9
9
9
months and has saved
$
690
\$690
$690
. Find the percent increase in the amount of Nikki’s savings.
Get tutor help
Joseph's Books sold
741
741
741
bookmarks this year. That is
90
%
90\%
90%
more than the store sold last year. How many bookmarks did Joseph's Books sell last year?
Get tutor help
A family's home is currently worth
$
560
,
097
\$560,097
$560
,
097
, which is
10
%
10\%
10%
lower than the home was worth when they bought it. What was the value of the home when they bought it?
Get tutor help
Cody was
165
c
m
165 \mathrm{~cm}
165
cm
tall on the first day of school this year, which was
10
%
10 \%
10%
taller than he was on the first day of school last year.
\newline
How tall was Cody on the first day of school last year?
\newline
______
c
m
\mathrm{cm}
cm
Get tutor help
Samantha has a coin collection. She keeps
2
2
2
of the coins in her box, which is
25
%
25 \%
25%
of the collection. How many total coins are in her collection?
\newline
Answer:
Get tutor help
Cooper invests money in an account paying simple interest. He invests
$
150
\$ 150
$150
and no money is added or removed from the investment. After one year, he has
$
156
\$ 156
$156
. What is the simple percent interest per year?
\newline
Answer:________
%
\%
%
Get tutor help
Samir went shopping for a new pair of pants. To find the total plus tax, he multiplied the price of the pair of pants by
1
1
1
.
09
09
09
. What percent tax did he pay?
\newline
Answer:
%
\%
%
Get tutor help
Samantha invests a total of
$
21
,
500
\$ 21,500
$21
,
500
in two accounts. The first account earned a rate of return of
6
%
6 \%
6%
(after a year). However, the second account suffered a
3
%
3 \%
3%
loss in the same time period. At the end of one year, the total amount of money gained was
$
345.00
\$ 345.00
$345.00
. How much was invested into each account?
Get tutor help
brand of cereal had
1.2
mg
1.2\,\text{mg}
1.2
mg
of iron per serving. Then they changed their recipe so they had
1.8
mg
1.8\,\text{mg}
1.8
mg
of iron per serving. What was the percent increase in iron?
Get tutor help
In a newspaper, it was reported that yearly robberies in Springfield were down
50
%
50 \%
50%
to
35
35
35
in
2011
2011
2011
from
2010
2010
2010
. How many robberies were there in Springfield in
2010
2010
2010
?
\newline
Answer:
Get tutor help
In a newspaper, it was reported that yearly robberies in Springfield were down
25
%
25 \%
25%
to
108
108
108
in
2013
2013
2013
from
2012
2012
2012
. How many robberies were there in Springfield in
2012
2012
2012
?
\newline
Answer:
Get tutor help
In a newspaper, it was reported that yearly robberies in Springfield were up
20
%
20 \%
20%
to
186
186
186
in
2014
2014
2014
from
2013
2013
2013
. How many robberies were there in Springfield in
2013
2013
2013
?
\newline
Answer:
Get tutor help
In a newspaper, it was reported that the number of yearly robberies in Springfield in
2010
2010
2010
was
135
135
135
, and then went up by
20
%
20 \%
20%
in
2011
2011
2011
. How many robberies were there in Springfield in
2011
2011
2011
?
\newline
Answer:
Get tutor help
In a newspaper, it was reported that yearly robberies in Springfield were down
20
%
20 \%
20%
to
108
108
108
in
2012
2012
2012
from
2011
2011
2011
. How many robberies were there in Springfield in
2011
2011
2011
?
\newline
Answer:
Get tutor help
In a newspaper, it was reported that the number of yearly robberies in Springfield in
2013
2013
2013
was
225
225
225
, and then went up by
28
%
28 \%
28%
in
2014
2014
2014
. How many robberies were there in Springfield in
2014
2014
2014
?
\newline
Answer:
Get tutor help
In a newspaper, it was reported that yearly robberies in Springfield were up
6
%
6 \%
6%
to
265
265
265
in
2012
2012
2012
from
2011
2011
2011
. How many robberies were there in Springfield in
2011
2011
2011
?
\newline
Answer:
Get tutor help
What is the percent of change from
4
4
4
to
7
7
7
?
\newline
(A)
75
%
75\%
75%
decrease
\newline
(B)
75
%
75\%
75%
increase
\newline
(C)
3
%
3\%
3%
increase
\newline
(D)
3
%
3\%
3%
decrease
Get tutor help
What is the percent of change from
4
4
4
to
7
7
7
?
\newline
(A)
75
%
75\%
75%
decrease
\newline
(B)
75
%
75\%
75%
increase
\newline
(C)
3
%
3\%
3%
increase
\newline
(D)
3
%
3\%
3%
decrease
Get tutor help
Previous
1
2