Chapter 7.6, Problem 29PPS

To determine

To calculate: The percent of change from 2004 to 2006.

Answer to Problem 29PPS

  $-11.7\%$ , Decrease.

Explanation of Solution

Given information:

According to the National Sporting Goods Association, the number of people who participated in bicycle riding in 2004 was 40.3 million. In 2006, the number was 35.6 million.

Calculation:

Amount of change from 2004 to 2006 $=35.6-40.3=-4.7$

Then, percent of change

  $\begin{array}{l}=\frac{\text{amount of change}}{\text{original amount}}\\ =\frac{-4.7}{40.3}\\ \approx -0.116625\end{array}$

To the nearest tenth, the percent of change is $-11.7\%$ . Since the percent of change is negative, it is a percent of decrease.