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Chapter 2: Q. 138 (page 130)

In ten years, the population of Detroit fell from 950,000 to about 712,500. Find the percent change.

Short Answer

Expert verified

The percentage change is -25 % . Negative sign indicates that population is decreased.

Step by step solution

01

Step. 1 Given information 

Initial value = 950,000

Final value = 712,500

02

Step. 2 Concept 

Percentage change equals the change in value divided by the value of the original value, multiplied by 100.

03

Step. 3 Calculation  

Percentage change

=Finalvalue-initialvalueinitialvalue×100=712500-950000950000×100=-237500950000×100=-237595=-25

Thus percentage change is . Where negative sign indicated decrease in population.

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