Question

if i went to best buy and they had a TV on sale for 425.00 dollars and then they were marked up to 500 dollars what would the percent increase be?

Answer 1

$\begin{gathered} We\text{ do } \\ increment=\frac{\text{ Final price}}{\text{ Initial price}}-1 \\ =\frac{500}{425}-1 \\ =\frac{100}{85}-1 \\ =\frac{20}{17}-1 \\ =\frac{3}{17} \\ \approx0.18 \\ \\ Thus\text{ the percent increase is }18\text{ \%} \end{gathered}$