Question

8. The price of an Apple computer dropped from $1,600 to $1,200. What was the amount ofdecrease? What is the percent decrease?

Answer 1

`\begin{gathered} \text{The amount of decrease was;} \\ Decrease=\text{New price-Old price} \\ \text{Decrease}=1200-1600 \\ \text{Decrease}=-400 \\ \text{The amount of decrease was \$400} \\ \text{Percentage decrease=}\frac{decrease}{old\text{ price}}*100 \\ \text{Percentage decrease=}(400)/(1600)*100 \\ \text{Percentage decrease=}(1)/(4)*100 \\ \text{Percentage decrease = 25} \end{gathered}`

Therefore the amount of decrease was $400 and the percentage of decrease was 25%