SOLUTION: what was the percentage increase in the mean population from 1950 2,556,000,00 and 2000 6,279,000,000

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Question 104862: what was the percentage increase in the mean population from 1950 2,556,000,00 and 2000 6,279,000,000
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Percent change = 100*(New value-Old Value)/Old Value
P=100%2A%286.279-2.556%29%2F%282.556%29*%281000000000%2F1000000000%29
P=100%2A%283.723%29%2F2.556
P=146%
Note: I wrote out the percent change this way to show that only the values are important, the billions portion (1,000,000,000) cancel each other out in the numerator and the denominator. It's easier to avoid mistakes entering all those zeros in a calculator.