Question

A population of 1,200 decreases to 1,080. What is the percent decrease?
A
10%
B
15%
C
5%
D
12%

Answer 1

To find the percent decrease, you can use the formula:

\[
\text{Percent Decrease} = \left(\frac{\text{Original Value} - \text{New Value}}{\text{Original Value}}\right) \times 100
\]

In this case, the original value is 1,200 and the new value is 1,080.

\[
\text{Percent Decrease} = \left(\frac{1200 - 1080}{1200}\right) \times 100
\]
\[
= \left(\frac{120}{1200}\right) \times 100
\]
\[
= 0.1 \times 100
\]
\[
= 10\%
\]

Therefore, the percent decrease is **10%**.

So the answer is **A**.