Percentages Review

The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?

• 15.79%

• 18.75%

• 2.25%

• 18%

Bob estimates that there will be 230 people who attend the concert.  There was an actual total of 300 people who attended.  Find the approximate percent error.  

• 23%

• 33%

• 27%

• 37%

Compute the sales commission:
Amount $4,500.00
Rate 5%

• $225.00

• $250.00

• $125.00

• $230.00

Compute the sales commission:
Amount $48,000.00
Rate 3%

• $1400.00

• $1440.00

• $1500.00

• $1430.00

Change 32% to a decimal.

• 32

• .32

• 3.2

• .032

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter? 

• 80%

• 50%

• 25%

• 20%

Sam bought an $85.00 jacket for 40% off of the regular price. How much did he pay for the jacket?

What is 10% of 22?

• 2.2

• 0.45

• 220

• .10

Find the percent of change from 10 inches to 14 inches.

Find the percent of change from 48 to 36.