A number is decreased by 20% and then increased by 20%. Find the net increase or decrease percent.
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if a number is decreased by x% and then increased by x% then net increase or decresed %= x-y-xy/100%
therefore, by using formula
net increse or decrese= x=20and y=20
=20-20-20×20/100%= -4%
here negative sign shows the decresed %
therefore, by using formula
net increse or decrese= x=20and y=20
=20-20-20×20/100%= -4%
here negative sign shows the decresed %
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