The population of Smallville increased by 20% from 2000 to 2005, and it increased by 30% from 2005 to 2010. By what percent did the population of Smallville increase from 2000 to 2010?
Call P the initial population
So....we have this
P ( 1.20) (1.30) = 1.56
So....the increase was ( 1.56 - 1.00) * 100% = (.56) * 100% = 56%
