Percent, Percent of Change, Percent of Error

Ms. Scott receives a basket of apples at her door every Friday morning.  Last Friday, there were 5 apples in the basket.  This Friday, there were 8 apples in the basket.  What is the percent of increase in the number of apples in the basket?

• 38%

• 63%

• 60%

• 167%

Tickets to Disney World are $100. The price is going to increase on January 1. What is the percent of change if the cost increases to a $120?

• 25%

• 18%

• 20%

• 50%

In 1999, the price of unleaded fuel was $1.09.  In 2015, the price of unleaded fuel is $1.89.  What is the percent change?

• 173% increase

• 73% increase

• 73% decrease

• 27% increase

Last year, 2,376 people attended a summer music festival. This year, attendance was 2,950. What was the percent of change in attendance to the nearest whole percent?

• Increase 24%

• Increase 19%

• Decrease 24%

• Decrease 19%

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

• 20%

• 25%

• 30%

• 18%

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

• 20%

• 18%

• 16%

• 17%

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%

• 7.7%

• 0.77%

• 0.78%

You guessed that there were 256 gumballs in the jar. There were actually 510. Find your percent error. Round to the nearest tenth if necessary.

• 49.8%

• 49.9%

• 50.2%

• 50.3%

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

• 30%

• 33%

• 75%

• 25%

Mary currently weighs 150 pounds. Before her diet she, weighed 180 pounds. What is the percent of change in her weight?

• 17% Decrease

• 17% Increase

• 20% Increase

• 20% Decrease