The Consumer Price Index in 2018 was 251. In 2019, the CPI rose to 257. Calculate the inflation rate from 2018 to 2019. Round your answer to the nearest tenth of a percent.(1 point)

Question

Responses

6%
6 percent

102.4%
102.4 percent

−2.3%
negative 2.3 percent

2.4%

Answer 1

To calculate the inflation rate from 2018 to 2019, you can use the formula:

\[ \text{Inflation Rate} = \frac{\text{CPI in 2019} - \text{CPI in 2018}}{\text{CPI in 2018}} \times 100 \]

Substituting the given values:

\[ \text{Inflation Rate} = \frac{257 - 251}{251} \times 100 \]

\[ = \frac{6}{251} \times 100 \]

\[ \approx 2.39% \]

Rounding to the nearest tenth of a percent, the inflation rate from 2018 to 2019 is approximately 2.4%.

So the correct response is:

2.4%.