[44% decrease] When the price of article was reduced by 20% its sale increased by 80%. What was the net effect on t

For Competitive Exams

When the price of article was reduced by 20% its sale increased by 80%. What was the net effect on the revenue?

44% increase

44% decrease

66% increase

75% increase

Explanation:

here, x=80 and y=20
Successive Percentage Change = (x - y - $\dfrac{xy}{100}) %$
= (80 - 20 - $\dfrac{80 \times 20}{100}) %$
= 44%

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