As given by the question
There are given that the average checked bag to weighs 30 pounds.
Now,
From the question
The increasing amount is:
[tex]30-23=7[/tex]Then,
The percent of increasing is:
[tex]\begin{gathered} \frac{30-23}{23}\times100=\frac{7}{23}\times100 \\ =30.43 \end{gathered}[/tex]Hence, the increasing amount is 7 and the percent of the increasing amount is 30%.