Question

Over a 10-year period, the population of one city changed from 3.2 million to 2.8 million. What was the percent change in the city's population?​

Answer 1

Answer:  12.5% decrease

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Explanation:

The decrease is 0.4 million since 3.2 - 2.8 = 0.4

Divide this decrease over the initial population

0.4/3.2 = 0.125

This converts to 12.5% when you move the decimal 2 spots to the right.

The population decreased by 12.5%