Answer:
1.8%
Explanation:
Given the original price as $2.84 and the new price as $2.89, let's go ahead and determine the increase in price as seen below;
[tex]\begin{gathered} \text{Increase }=\text{ New price - Original price} \\ =2.89-2.84 \\ =0.05 \end{gathered}[/tex]We'll use the below formula to determine the percentage increase;
[tex]\begin{gathered} \text{Percentage Increase }=\frac{Increase}{\text{Original price}}\times100 \\ =\frac{0.05}{2.84}\times100 \\ =0.0176\times100 \\ =1.8\text{\%} \\ \end{gathered}[/tex]