In order to calculate the percent markup, we first need to divide the selling price by the original price paid. So we have:
[tex]\frac{35.525}{25.625}=1.3863=138.63\text{\%}[/tex]Now, subtracting from 100%, we have the markup percent:
[tex]138.63-100=38.63\text{\%}[/tex]Rounding to the nearest whole percent, we have 39%.