Question

What is 32$ earnings marked up 80%

Answer 1

`\begin{array} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{80\% of 32}}{\left( \cfrac{80}{100} \right)32}\implies 25.6~\hfill \underset{ marked~up }{\stackrel{ 32~~ + ~~25.6 }{\text{\LARGE 57.6}}}`