Answer:
The percentage increase is 78.72%
Explanation:
Here, we want to calculate a percentage increase
We proceed to use the mathematical relation as follows;
Percentage increase = (new value - old value)/old value * 100%
new value is value in 2011 = 252
old value is value in 2006 = 141
Substituting these values, we have;
(252-141)/141 * 100%
= 111/141 * 100%
= 78.72%