Given:
180 pounds to 155 pounds
[tex]\begin{gathered} \text{Decreased value=180-155} \\ \text{Decreased value=}25\text{ pounds} \end{gathered}[/tex][tex]\begin{gathered} \text{Decrease percentage=}\frac{25}{180}\times100 \\ \text{Decrease percentage=}13.89\text{ \%} \end{gathered}[/tex]