Question

The price of a notebook was $3.30 yesterday. Today, the price rose to $3.55. Find the percentage increase. Round your answer to the nearest tenth of apercent.__%

Answer 1

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Write the formula for calculating the percentage increase

`Percentage\text{ increase}=\frac{increase}{initial\text{ price}}*100`

STEP 2: Calculate the increase

`\begin{gathered} increase=New\text{ price - initial price} \\ increase=\text{ \$}3.55-\text{ \$}3.30=\text{ \$}0.25 \end{gathered}`

STEP 3: Calculate the percentag inrcease

`\begin{gathered} \%increase=(0.25)/(3.30)*100=(25)/(3.30)=7.575757576\% \\ \%increase\approx7.6\% \end{gathered}`

Hence, the percentage increase s approximately 7.6%