Percent Error vs. Percent Change

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?

• 16.67%

• 20%

• 2500%

• 80%

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

• 15.79%

• 18.75%

• 2.25%

• 18%

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.  

• 15%

• 20%

• 25%

• 30%

Lacey bought a new purse that originally cost $25 and is on sale for $15. Find the percent of change in the price in the purse.

• Decrease of 40%

• Decrease of 10%

• Decrease of 30%

• Decrease of 20%

Jason had a salary change from $150 a week to $175 a week. What is the approximate percent increase of his salary?

• 16.7%

• 18.6%

• 14.7%

• 20.6%

What percent of 50 is 20?

• 40%

• 25%

• 2.5%

• 4%

What is 40% of 230?

• 92

• 9200

• 9.20

• 575

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? 

• 35%

• 25%

• 30%

• 20%

The Game Stop is having a sale on an originally $66.64 game. It is on sale for $29.99. What is the percent change?

• 54.9% Decrease

• 54.9% Increase

• 549% Decrease

• 549% Increase

An archaeologist estimated that a fossil was 520 years old. It was actually 500 years old. What was the percent error?

• 4%

• 20%

• 3.8%

• none of these