Increase or decrease in percetange with commodity price | Percentage Questions Answers | Quantitative Aptitude | Aptitude Questions Answers | mastguru.com

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Increase or decrease in percentage with price

If the price of a commodity increases by R%, then the reduction in consumption so as not to increase the expenditure will be,

$\begin{aligned} \left[ \frac{R}{(100+R)}\times 100 \right]\% \end{aligned}$

If the price of a commodity decreases by R%, then the increase in consumption so as not to decrease the expenditure will be

$\begin{aligned} \left[ \frac{R}{(100-R)}\times 100 \right]\% \end{aligned}$