SOLUTION: A number increases from 30 to 40 and then decreases from 40 to 30. Compare the percent increase from 30 to 40 and that of the decrease from 40 to 30.

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Question 635325: A number increases from 30 to 40 and then decreases from 40 to 30. Compare the percent increase from 30 to 40 and that of the decrease from 40 to 30.
Answer by Maths68(1474) About Me  (Show Source):
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% increases from 30 to 40 = ((New Value - old value)/old value)*100
% increases from 30 to 40 = %28%2840-30%29%2F30%29%2A100
% increases from 30 to 40 = %2810%2F30%29%2A100
% increases from 30 to 40 = 1000%2F30
% increases from 30 to 40 = 33.33



% decreases from 40 to 30 = ((old value-New value)/old value)*100
% decreases from 40 to 30 = %28%2840-30%29%2F40%29%2A100
% decreases from 40 to 30 = %2810%2F40%29%2A100
% decreases from 40 to 30 = 1000%2F40
% decreases from 40 to 30 = 25