Percentage increase is 3.71%.
$\text{% increase} = \dfrac{ \color{red}{ \text{final value} } - \color{blue}{ \text{initial value} } }{ \color{blue}{ \text{initial value} } } \times 100$ | $$ \begin{aligned} \color{red}{ \text{final value} } &= 27.96 \\[1.5em] \color{blue}{ \text{initial value} } &= 26.96 \end{aligned} $$ |
$\text{% increase} = \dfrac{ \color{red}{ 27.96 } - \color{blue}{ 26.96 } }{ \color{blue}{ 26.96 } } \times 100 $ | |
$\text{% increase} = 0.0371 \times 100 $ | |
$\text{% increase} = 3.71 \% $ |