Percents 7th Grade

% to decimal

100

40% as a decimal

0.40

200

75.3%

0.753

300

800%

8

400

1800%

18

Finding the Percent of

100

10% of 50

5

200

75% of 60

15

300

45% of 98.7 

44.415

400

67.5% of 1,900

1,282.5

Percent Increase

100

100 increased by 20%

120

200

$50 increased by 60%

$80

300

Your bill is $45.00 and you want to leave a 15% tip. How much would you leave? 

$51.75

400

You own a store and purchased sweatshirts for $40. In order to make a profit you must markup the price by 50%. How much would you sell the sweatshirt for? 

$80

Percent Decrease

100

30 decreased by 10%

27

200

100 decreased by 60%

40

300

Your favorite store is having a 30% off sale! You buy a skateboard that is $200, with the discount, what is the price you pay?

$140

400

Which is the better discount? 70% off of $80 or 80% off of 70? 

80% off of 70, because you would only pay $14

Percent change

100

10 to 15 is an increase of:

50%

200

3 points to 6 points 

100%

300

100% to 82%

18% decrease 

400

98.6 to 3

decrease of about 97%