Chapter SH, Problem 7.6.11EP

To determine

To calculate:To find the percent of change if $25$ cards are removed from the collection

Answer to Problem 7.6.11EP

Percent of change is $7.4\%$

Explanation of Solution

Given information:A baseball card collection contains $340$ baseball cards and $25$ cards are removed from the collection

Formula used:

Percent of change is calculated as

  $\%change=\left|\frac{Originalnumber-Newnumber}{Originalnumber}\right|\times 100$

Calculation:

Original number $=340$

Change $=25$

Percent of change is calculated as

  $\begin{array}{l}\%change=\frac{25}{340}\times 100\\ \%change=0.0735\times 100\\ \%change=7.35\%\\ \%change=7.4\%\end{array}$

Conclusion:

Hence, percent of change is $7.4\%$