What was the percent increase in the population in South America from 1900 to 2000?

1900 - 38,000,000
1950 - 111,000,000
2000 - 515,000,000

2 answers

515,000,000 - 38,000,000 = 477,000,000

38,000,000 / 477,000,000 = .08 = 800%
(515-38)
--------- * 100
38

= 1255
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