Round your answer to the nearest tenth of a percent.

Question

Suppose there are approximately 317 million people in the U.S. If the world population is 7.1 billion people, what percent of the world population is in the U.S.? 

Answer 1

7.1 billion = 7100 million

So, (317 million)/(7100 million) x 100 = 4.465 %