if we take 2,376.80 as the 100%, what is 713.04 in percentage? well
[tex]\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
2,376.80&100\\
713.04&x
\end{array}\implies \cfrac{2,376.80}{713.04}=\cfrac{100}{x}[/tex]
solve for "x"
