Chapter 13.7, Problem 27SR

To determine

The percent change from $32ft$ to $79ft$ be either percent of decrease or percent of increase is to be estimate.

Answer to Problem 27SR

The percent change from $32ft$ to $79ft$ is percent of increase of $146.88\%$

Explanation of Solution

Given:

  $\begin{array}{l}Y=79\\ X=32\end{array}$

Concept Used:

Percent change is given by the following expression:

  $P_c=\frac{Y-X}{X}\times 100$

Where,

Ending number: $Y$

Starting number: $X$

Calculation:

Percent change from $32ft$ to $79ft$ becalculated by using the following expression:

  $\begin{array}{l}{P}_c=\frac{Y-X}{X}\times 100\\ P_c=\frac{79-32}{32}\times 100\\ P_c=\frac{47}{32}\times 100\\ P_c=146.875\%\\ P_c=146.88\%\end{array}$

So, the percent change from $32ft$ to $79ft$ is percent of increase of $146.88\%$

Conclusion:

Hence, there is percent of increase of $146.88\%$ .