Car Depreciation is calculated this way:
Formula: Price of Car - ( ARF / 2) / 10 years
*ARF = Additional Registration Fees
So for an example if your car cost $80,000 and your ARF is $20,000. This is how it is calculated.
Car depreciation = $80,000 - ($20,000 / 2) /10 year
Your car depreciation is $7000 / year.