On form 2106-vehicle expense worksheet-lines47

I own the vehicle and have used it the same way with the same mileage for a 10 years. I traded it in at the end of the year for a new car. The cost new was $24700 with total depreciation of $11312 and the adjusted basis in the car is$13388. I have no idea where the $5250 figure came from or how to correct it.