John had a car accident in which his car was completely destroyed. At the time of the accident, the car had a fair market value of $30,000 and an adjusted basis of $40,000. John used the car 100% of the time in connection with his management of apartment buildings. John received an insurance recovery of 80% of the value of the car at the time of the accident. If Johns AGI for the year is $50,000, determine his deductible loss on the car.