Percent Increase, Decrease, and Error

Find the percent increase or decrease:

5 feet to 12 feet

Find the percent increase or decrease:

20 dogs to 16 dogs

Find the percent increase or decrease:

40 peaches to 28 peaches

Find the percent increase or decrease:

100 MB to 145 MB

Find the percent increase or decrease:

6 liters to 8 liters

James estimated that there were 50 kids at the basketball court. There were actually 60. Find James's percent error.

Thundering Ted on the local news predicted that we would get 2 inches of snow. It snowed 14 inches. Find Thundering Ted's percent error.

Lisa Lightening predicted today's high temperature would be 60 degrees. It reached 80 degrees today. Find Lisa lightening's percent error.

Janisha guessed that her dog Fluffy weighed 40 pounds. Fluffy went to the vet and weighed in at 47 pounds. What was Janisha's percent error? (round to the nearest tenth of a percent)

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