The previous weight of Rhette's dog = was 158 pounds.
Present weight of Rhette's dog = 126 pounds.
The difference in the weight is calculated as,
[tex]\begin{gathered} Difference\text{ = 158 - 126} \\ Difference\text{ = 32} \end{gathered}[/tex]
Percentage change is calculated as,
[tex]\begin{gathered} Percentage\text{ change = }\frac{32}{158}\times100 \\ Percentage\text{ change = 20.25 \%} \end{gathered}[/tex]
