Simple Interest
Percent Change
Mark up and Mark downs
The Missing Value
100

Sarah left her $4,000 prize money in the bank for 2 years at 4% interest. She needs to figure out how much interest she has now.

$320

100

From 326 ft to 241 ft (increase or decrease? what's the percent change?)

26% decrease

100

Original price: $15

Markdown: 20%

What is the new price?

$12.00

100

Fraction = Decimal = Percent

39/50=________=_______

 .78 and 78%

200

If you put $7,000 on your savings account with an interest rate of 15.9%, how much interest do you get after 1 year?

$1,113

200

At a supermarket, an item has increased from 75 cents per pound to 81 cents per pound. What is the percent increase in the cost of the item?

8%

200

Original price: $45
Mark Up: 66%

What is the new price?

$74.70

200

Fractions = Decimals = Percents

_______ = 0.6 = ________

3/5 and 60%

300

$35,800 at 8.2% for 3 years

$8,806.80

300

From 309 grams to 299 grams (increase or decrease? what's the percent change?)

3% decrease

300

Ms. Robertson went to dinner last night

and her bill was $32.12 and she tipped

her waitress 20%. How much was her

 bill total after the tip?

$38.54

300

Fractions = Decimals = Percents

_______ = ________ = 85%

17/20 and 0.85

400

Jessica invests $3,000 in a credit union at an interest rate of 3.9%. She leaves the money there for 5 years. What is her interest?

$585

400

The staff at a company went from 40 to 29 employees. What is the percent decrease in staff?

27.5%

400

The band had a total of 48 students last year. The number of students in band increased by 9%. How many students are in band now?

52 students

400

Fractions = Decimals = Percents

1/20 =   ________ = _________

0.05 and 5%

500

$43,800 at 4.8% for 2 years

$4,204.80

500

At Furnace Woods School, enrollment increased from 320 students in 2006 to 349 students in 2007. What is the percent increase in enrollment?

9.1%

500

An xbox costs $150 dollars. The price is reduced 35% for a sale. How much is the savings? How much would you pay for the xbox after the discount?

Your savings: $52.50
What you pay: $97.50

500

Fractions = Decimals = Percents

_______ =  1.2 =  _________

6/5 and 120%

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