%, Decimal, Fraction Conversions
Proportions
Percent Change
Mark-up and Discounts
Simple Interest
100

24% as a decimal

0.24

100

What percent of 25 is 6?

24%

100

My classroom library went from 35 books to 50. Find the percent change.

42.9%

100

$112 has a discount of 32%, what is the new dollar amount?

$76.16

100

I = $24, P = $400, t = 2 years

3%

200

0.71 as a percent

71%

200

What number is 48% of 75?

36

200

My candy jar went from 98 to 80 after class. What is the percent change?

18.4%

200

$120 has an 80% discount, what is the new dollar amount?

$24

200

I = $30, P = $500, r = 3%

2 years

300

0.005 as a percent

0.5%

300

70% of what number is 35?

50

300

The temperature outside went from 43 to 78. Find the percent change.

81.4%

300

I buy something for $45 and mark it up 25%. What is the new dollar amount?

$56.25

300

Find the interest rate.

$600 at 5% for 2 years.

$60

400
Write 13/50 as a decimal and a percent

0.26 and 26%

400

9 is what percent of 75?

12%

400

The price went from $30 to $22. Find the percent change.

26.7%

400

I buy something for $82 and mark it up 75%. What is the new price?

$143.50

400

Find the interest and the ending balance.

$1500 at 4% for 5 years.

$300 of interest, balance of $1800

500

Write 33/20 as a decimal and a percent

1.65 and 165%

500

What number is 80% of 75?

60

500

Our school went from 253 students to 345 students. Find the percent change.

36.4%

500
Store A sells a watch for $95, but has a 40% discount. Store B sells the same watch for $90, but has a 30% discount. What store has a better deal?

Store A is better at $57 compared to Store B $63

500

Your bill at the store is $595, but in Michigan you need to add a 6% sales tax. What is the total amount you pay?

$630.70

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