For this problem, we will simply create a ratio to find the difference created between the prices, and subtract this from 1 (100%) to find the percent decrease.
$19.95 / $49.99 = 0.39908
1 - 0.39908 = 0.60092
Given that we take away the difference from the price from the percent of the whole, we find that the price decrease is 60.092%.
