so, is the same as before, so we do it exactly the same way.
23000 - 19700 = 3300 is the difference, or namely the markup on the cost.
if 19700, originally, is the 100%, what is 3300 off of it in percentage?
[tex]\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 19700&100\\ 3300&x \end{array}\implies \cfrac{19700}{3300}=\cfrac{100}{x}\implies \cfrac{197}{33}=\cfrac{100}{x} \\\\\\ 197x=3300\implies x=\cfrac{3300}{197}\implies x\approx 16.75[/tex]
