We have to calculate the percentage change of the first quantity with reference to the second quantity.
The quantities are:
[tex]\begin{gathered} X_1_{}=480 \\ X_2=560 \end{gathered}[/tex]We then can calculate the percentage change as:
[tex]\begin{gathered} p=\frac{480-560}{560}\cdot100\% \\ p=\frac{-80}{560}\cdot100\% \\ p=-0.1429\cdot100\% \\ p=-14.29\% \end{gathered}[/tex]Answer: the percentage change of the first quantity with reference to the second quantity is -14.29%.
