Answer
The percent increase of the population is: 13.1%
SOLUTION
Problem Statement
The question says the population of a region grew from 274 million to 310 million and we are required to find the percentage increase.
Solution
To solve this question we need to apply the formula below:

The increase in population is the difference between the population of the region in 2016 and 2000.
The increase in population is calculated below:

The total initial population is the population from the year 2000 i.e. 274,000,000.
Thus, we can calculate the percentage increase as:

Final Answer
The percent increase of the population is: 13.1%