yamato7671 yamato7671

23-11-2015
Mathematics

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why is 20 to 40 is a 100% increase but 40 to 20 is a 50% decrease

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Аноним Аноним

23-11-2015

Its because 20 is doubling its self. Its using 100% of its number, While 40 is decreasing by 50%. Half of forty is 20. Half equals 50%.

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Аноним Аноним

23-11-2015

I think it because how the order change

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