Answer: 33.3%
Step-by-step explanation:
Cost price of the car = $13500
Value of car one year later = $9000
Decrease in value of car = $13500 - $9000 = $4500
The percent of decrease of the value of the car will then be:
= Decrease in value of car / Cost price × 100
= $4500 / $13500 × 100
= 1/3 × 100
= 33.3 %