TABLE OF CONTENTS
In a small town in New York, the population has been slowly declining. In 1999 there were 2087 residents, and only 1560 in 2009. What is the percent decrease?
divide 1560 by the original population
The price of a Shmintendo game system has decreased over the years. When the Shmintendo was first introduced it was $249. A few years later, a Shmintendo sold for $199. What is the percent decrease?
price increase divided by original price
In the early 1900's the average life span for US citizen was 49 years. It is now 78.2 years. What is the percent increase?
multiply the decimal by 100 to turn into percent