In a small town in New York, the population has been slowly declining. In 1999 there were 2087 residents, and there were only 1560 residents in 2009. What is the percent decrease?
Hint
Divide the difference in populations (2087 – 1560) by the original population (2087).
Answer
About 25.3%
Example 2
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?
Hint
Price increase divided by original price.
Answer
About 20.1%
Example 3
In the early 1900s, the average life span for a US citizen was 49 years. It is now 78.2 years. What is the percent increase?
Hint
Divide the age difference by the old life span. Don't forget to multiply the decimal by 100 to turn it into percent.