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

asked Nov 8, 2016 30.6k views

4 votes

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7 votes

I think it because how the order change

Dcw answered Nov 9, 2016

by Dcw

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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%.

Panayotis answered Nov 12, 2016

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