Answer
35% decreases
Work Step by Step
Compute the percentage decrease in the sale price of the dictionary as shown below:
$\begin{align}
& \text{Percentage decrease}=\frac{\text{Amount of decrease}}{\text{Original amount}} \\
& =\frac{\$56.00-\$36.40}{\$56.00}\\&=\frac{19.6}{56}\\&=0.35\end{align}$
Move decimals to two places right in the resultant figure and add % to it as follows: 35%
