Question

The population of a country has been increasing for several decades. In​ 1990, the population was about 242 million people. In​ 2014, the population was about 289 million people. Determine the percent increase in the​ country's population during this time period.

Answer 1

To calculate percentage increase. Subtract old and new value. Then divide answer by old value then multiply by 100:

289 -242 = 47

47÷ 242 × 100 = 19.4% (rounded to 2 s.f)