Chapter 7 Review

Converting

100

Put 7/10 in decimal and percent form. 

.70 % 70%

200

8% is what in fraction and decimal form? 

8/10 & .08 

300

Rename the ratio 8.5/20 as a percent. 

34%

400

Rename the ration 32:1000 as a percent. 

3.2%

500

Which is greater? 0.03/0.12 or 20%. Show your work. 

0.03/0/12

Find %, Part, or Whole

100

25% of 172? 

43

200

6.75% of $720?

$48.60

300

What percent of 30 is 6?

20%

400

3.9 is what percent of 13? 

30%

500

What number is 25% of 20?

5

Percent Increase & Decrease

100

Find the percent increase from 12 to 15

25%

200

What is the "formula" to find percent increase?

Amount of increase divided by the original amount. 

300

Find the percent increase from 3.5 to 12.5

257.1%

400

What is the formula for percent decrease? 

Amount of decrease divided by the original amount. 

500

Find the percent decrease from $48.00 to $30.00

37.5%

Selling Price

100

What is the formula to find the selling price of an item. 

Cost + (% + cost) 

200

Find the selling price of each item.

A ring cost $10.00 and sells for a profit of 20%. 

$12.00

300

Find the selling price...

A flatscreen TV cost $1280 and sells at a profit of 125%. 

$2880 

400

Find the selling price of each item...

A pair of jeans costs $20 and sells at a profit of 30%.

$26.00 

500

Explain what the "selling price" is of an item. 

The amount for which the item is sold to the customer. 

Profit and Loss

100

What is the "formula" to find the profit of an item?

Percent times the cost. 

200

Find the profit and round the nearest cent. 

Cost: $48.60
Percent Profit: 25%

$12.15

300

Find the profit: 

Jeans cost $50.00 and the percent profit is 16%

$8.00

400

Find the loss...

Cost $1200 

Percent loss 32%

$384 

500

Find the loss...

Percent of loss: 19.2% 

Cost: $524.20

About $100.65