Chapter 2.10, Problem 22P

Find the percent change. Round to the nearest percent.

$42.75 to $39.99

To determine

To find: the percentage change and then round the result to nearest percentage.

Answer to Problem 22P

Percentage is 6%

Explanation of Solution

Given information: value changes from $42.75 to $39.99

Consider old value $42.75, and new value $39.99.

Then the percentage change formula,

  $\begin{array}{l}\%change=\frac{\text{Old}\text{value}-\text{New}\text{Value}}{\text{Old}\text{value}}\times 100\\ =\frac{42.75-39.99}{42.75}\times 100\\ =\frac{2.75}{42.75}\times 100\\ \approx 6.46\end{array}$

Therefore the decrease of approximate $6.46$ %

And the nearest percentage is 6%