The markup is given as;
[tex]\begin{gathered} SP-CP \\ \text{Where SP=selling price, CP= cost price} \end{gathered}[/tex]Given that;
[tex]\begin{gathered} SP=\text{ \$153.60,} \\ CP=\text{ \$67.98} \end{gathered}[/tex]Thus,
[tex]\begin{gathered} Markup\text{ price = }153.60-67.98 \\ Markup\text{ price = \$85.62} \\ \\ \end{gathered}[/tex]