Answer:
150%
It is a percentage increase
Step-by-step explanation:
We start by calculating the percentage increase
Mathematically, we have this as;
Percentage increase = (new value - old value)/old value * 100%
New value = new height = 60 inches
old value = old height = 24 inches
Substituting these values, we have ;
(60-24)/24 * 100%
= 36/24 * 100%
= 1.5 * 100% = 150%
It is a percentage increase as we can see growth