If a number is increased by 20 % and then red | vedclass

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(D) Let the initial number be $100$.After increasing the number by $20 \%$,the new number becomes $100 + (20 \% 	ext{ of } 100) = 100 + 20 = 120$.Now

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$4 \% 	ext{ decrease}$

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(D) Let the initial number be $100$.After increasing the number by $20 \%$,the new number becomes $100 + (20 \% 	ext{ of } 100) = 100 + 20 = 120$.Now,this number is reduced by $20 \%$. The reduction amount is $20 \% 	ext{ of } 120 = 0.20 	imes 120 = 24$.The final number is $120 - 24 = 96$.The net change is $100 - 96 = 4$.Since the final value is less than the initial value,there is a $4 \% 	ext{ decrease}$.

If a number is increased by $20 \%$ and then reduced by $20 \%$,what is the net change in the number?

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