Answer:
[tex]\text{ 55\%}[/tex]Explanation:
Here, we want to calculate the percentage markup
Mathematically, we can get that using the formula below:
[tex]\text{ \% markup = }\frac{\text{ selling price - cost price}}{\text{ cost price}}\text{ }\times\text{ 100 \%}[/tex]By substituting the given values, we have it that:
[tex]\begin{gathered} \text{ \% markup = }\frac{153.6-68.98}{68.98}\text{ }\times\text{ 100\% } \\ \\ \text{ \% markup = 55\%} \end{gathered}[/tex]