Percent Increase Decrease Error

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

• 23%

• 33%

• 27%

• 37%

Griffin was buying a birthday card, he thinks the price is $4.50, but the actual price is $4. What is his percent of error?

• 50%

• 0.5%

• 12.5%

• 0.125%

Sam thinks the cost of the book is $50, but actually it's $56. What is Sam's percent of error?

• 10.7%

• 6%

• 12%

• 89%

Andrew expected $60 for his birthday, but only got $40. What is the percent of error?

• 50%

• 20%

• 67%

• 150%

You guessed that the Chicago Cubs would win 95 games during the regular season. They actually won 103. What was your percent error? Round to the nearest tenth if necessary.

• 7.8%

• 7.4%

• 0.77%

• 0.78%

You guess that Lebron James would score 35 points during the game. He actually scored 28. Find your percent error.

• 30%

• 33%

• 75%

• 25%

Find the PERCENT of change.
20 dogs to 5 dogs

• Decrease 15%

• Increase 15%

• Increase 75%

• Decrease 75%

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 the original cost was $5 and the new cost is $1. 

• Increase $4

• Decrease $4

• Decrease 80%

• Decrease 400%

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%