The Percent Proportion and Percent of Change

Last week, you finished level 2 of a video game in 32 minutes. Today, you finished level 2 in 28 minutes. What is your percent of change?

• Increase 12.5%

• Decrease 12.5%

• Increase 4%

• Decrease 4%

What is 5% written as a decimal?

• 0.05

• 0.5

• 5

• 50

On Sheikh Zayed Road, last week, 72 people got a speeding ticket. This week, only 36 people got a speeding ticket. What is the percent of change in the speeding tickets?

• Increase 50%

• Decrease 50%

• Increase 1%

• Decrease 1%

Find the percent of change if Eddie started with 20 tickets and ended with 30 tickets.

• Increase 10 tickets

• Increase 50%

• Increase 33%

• Decrease 50%

What percent of 50 is 20?

• 40%

• 25%

• 2.5%

• 4%

78 is what percent of 450?

• 5%
• .17
• 17%
• 18%

What is 40% of 230?

• 92

• 9200

• 9.20

• 575

Last week, you finished level 2 of a video game in 32 minutes. Today, you finished level 2 in 28 minutes. What is your percent of change?

• Increase 12.5%

• Decrease 12.5%

• Increase 4%

• Decrease 4%

You estimate that you sent 135 texts last week but when you get the bill it was actually 108. 

• (135 - 108)/135 = 20%

• (135 - 108)/108 = 25%

• (108 - 135)/135 = -20%

• (108 - 135)/108 = -25%

You estimate that 200 people attend a school concert. The actual attendance was 240.   What is the percent error?

• 20%

• 18%

• 16%

• 17%