Question

Last month, you conducted a survey for the student newspaper. Of thestudents that you surveyed, 20 thought that the student council presidewas doing a good job. You conduct the same survey this month. Of thesame students surveyed, 11 think that the student council president isdoing a good job. What is the percent change in the number of studentswho think that the student council president is doing a good job from lasmonth to this month? *

Answer 1

Given:

In the last month, the number of students who thought the student council president was doing a good job is 20.

In this month, the number of students who thought the student council president was doing a good job is 11.

To find the percent change:

The percent change is,

$\begin{gathered} \text{Decreased percent=}\frac{New}{Old}\times100\text{ \%} \\ =\frac{11}{20}\times100 \\ =55\text{ \%} \end{gathered}$

Hence, the percent change in the number of students who think that the student council president is doing a good job from last month to this month is 55%.