if we take 64 as the 100%, what is 8 of 64 in percentage then?
well [tex]\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
64&100\\
8&x
\end{array}\implies \cfrac{64}{8}=\cfrac{100}{x}[/tex]
solve for "x"
