For example, I bought a car for personal use and the car costs $120,000. It has a useful life of 10 years, to calculate depreciation of the car, I should use the cost divided by its useful life, which is $120,000 / 10 years equals to $12,000, the cost of depreciation for each year will be the same when using straight line method.
However, there may be scrap value for the car. Scrap value is the worth of physical asset’s individual