Respuesta :

Buying price of store = $10

the selling price of $21.50.

So the percent markup:

[tex]\begin{gathered} PM=\frac{21.5-10}{21.5}\times100 \\ PM=\frac{11.5}{21.5}\times100 \\ PM=53.48 \end{gathered}[/tex]

So the percent markup is 53.48%