Hello
The population at 2008 = 2692
The population at 2010 = 5712
The absolute increase is simply the difference between the two population over the two time periods
Absolute increase is

The absolute difference is 3020
The percentage increase would be the ratio between the change in population to the original population multiplied by 100

The percentage increase is approximately equals to 112.2%
From the calculation above, the absolute difference is 3020 and the percentage increase is 112.2%