Question

If a price of a shirt decreased from Rs. 80 to Rs. 60, find the percentage decrease.

Answer 1

$$\begin{gathered} \mathrm{Percentage}\mathrm{decrease}=\frac{\mathrm{Decrease}\mathrm{value}}{\mathrm{Original}\mathrm{value}}\times 100\% \\ =\frac{80-60}{80}\times 100\% \\ =\frac{20}{80}\times 100\% \\ =25\% \\ \mathrm{Hence},\mathrm{the}\mathrm{percentage}\mathrm{decrease}\mathrm{is}25\% \end{gathered}$$