Question

Find the percentage of increase or decrease

(a) Price of shirt decreased from $Rs80$ to $Rs60$

Answer 1

Initial price = $Rs80$, Final price = $Rs60$.

$$\begin{gathered} Decreaseinpriceofshirt=Initialprice-Finalprice \\ =80-60 \\ =Rs20 \end{gathered}$$

$$\begin{gathered} \%decreaseinpriceofshirt=\frac{Decreaseinpriceofshirt}{Initialprice}\times 100 \\ =\frac{20}{80}\times 100 \\ =25\% \end{gathered}$$

Therefore, price of shirt decreased by $25\%$.