Find Percent with Proportion

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

Which proportion matches the following:

What is 90% of 250?

In the Central City Grand Prix, out of 30 cars that started the race, 12 of them finished. What percent of the cars finished the race?

• 20%

• 40%

• 60%

• 80%

Find the PERCENT of Change.
The original cost was $50 and the new cost is $60. 

• Increase 20%

• Increase 16.67%

• Increase $10

• Decrease $10

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%

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%

Mrs. Ciampa had 27 students in her class last year and this year she had 30 students in her math class. What is the percent of change?

• 24%

• 20%

• 11%

• 50%