Question

The number of students in a school's graduating class went from 148 one year to 185 the next year.
Calculate the percentage change in the number of students who graduated.


20%

80%

25%

75%

Answer 1

To calculate the percentage change in the number of students who graduated, you can use the following formula:

\[
\text{Percentage Change} = \left( \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \right) \times 100
\]

In this case:

- Old Value (initial number of students) = 148
- New Value (number of students in the next year) = 185

Now, plug in the values:

\[
\text{Percentage Change} = \left( \frac{185 - 148}{148} \right) \times 100
\]

This simplifies to:

\[
= \left( \frac{37}{148} \right) \times 100 \approx 25\%
\]

Thus, the percentage change in the number of students who graduated is **25%**.