in 2010 the population of springtown was 5680 . In 2014 , the population was 10,500 . what was the percent change in the population between 2010 and 2014

Question

This is a math paper assigned to the class and it is really hard I don't understand it but I am trying my best . 

Answer 1

Percentage change is defined as the change in population from 2010 till 2014 divided by the base population number in 2010

 

The change in population from 2010 till 2014 is 10,500 minus 5,680 or 4820

 

Dividing the change by the base yields 4820 ÷ 5,680 or .84859 or 84.86% increase