we can write an equation
you multiply the total pounds by the percent lost to find the lost pounds
then
[tex]48\times x=9[/tex]where x is the percent lost, then solve for x
[tex]\begin{gathered} x=\frac{9}{48} \\ \\ x=\frac{3}{16}=0.1875 \end{gathered}[/tex]multiply by 100 to find on percent form
[tex]0.1875\times100=18.75[/tex]Percent is 18.75%