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Find the absolute change and the relative change in the following cases.The number of refugees in the world increased from 8.7 million in 2005 to 16.1 million in 2015.

Answer :

absolute change is determined by the absolute value of the subtraction of the number of refugees in both years:

absolute change = | 16.1 million - 8.7 million | = 7.4 million

Relative change is given by the quotient between final value and initial value, just as follow:

relative change = final value / initial value

= 16.1 million / 8.7 million

= 1.85

Hence, the absolute change is 7.4 million and relative change is of 1.85

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