[tex]\bf \qquad \textit{Compound Interest Earned Amount}\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\qquad
\begin{cases}
A=\textit{current amount}\\
P=\textit{original amount deposited}\to &\$2,300\\
r=rate\to 13\%\to \frac{13}{100}\to &0.013\\
n=\textit{times it compounds per year}\to &1\\
t=years\to &1
\end{cases}[/tex]
A is amount accrued in one year
to get the interest earned, simply subtract the Principal from the
amount A