Percent Increase Decrease Error

One week, 72 people got a speeding ticket. The next 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%

Tags

CCSS.6.RP.A.3C

A group of wildlife conservationists are trying to determine what is causing a recent decrease in the number of white-tail deer in a particular area. Two years ago, they estimated the population to be 680. Recently, the population was estimated to be 410. Which is closest to the percent of change in the white-tail deer population?

• 40%

• 66%

• 270%

• 54%

Tags

CCSS.6.RP.A.3C

Bald eagles have made an amazing recovery from the brink of extinction. In the mid-1960s, there were only 450 breeding pairs in the lower 48 states. Since that time, the bald ealges have made a comeback due to habitat restoration. There are now about 10,000 breeding pairs in the lower 48 states. By about what percent has the number of bald eagle breeding pairs increased?

• 54%

• 95%

• 10%

• 2,122%

Tags

CCSS.6.RP.A.3C

Find the Percent of Change.  Round to nearest Percent. Microwave:  Originally $96 then the price changed to $115.20

• 20% Increase

• 17% Increase

• 20% Decrease 

• 17% Decrease

Tags

CCSS.6.RP.A.3C

Find the Percent of Change.  Round to nearest Percent.
What is the markup rate on a $470 ring that is now $634.50?

• 26% Decrease

• 35% Decrease

• 35% Increase

• 26% Increase

Tags

CCSS.6.RP.A.3C

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

Tags

CCSS.6.RP.A.3C

Juanna guessed that there were 50 marbles in a jar. There was actually 60 marbles in the jar. What other estimate would have the same percent error?

Tags

CCSS.6.RP.A.3C

James predicted that we would get 8 inches of snow. It snowed 6 inches. What other prediction would have the same percent error?

Tags

CCSS.6.RP.A.3C

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%

Tags

CCSS.6.RP.A.3C

If the price of a softball glove decreased from $60 to $36, what was the percent of decrease?

• 60%

• 66.6%

• 40%

• 25%

Tags

CCSS.6.RP.A.3C