Consider the following data on an automobile:

Cost basis of the asset (I) = $200,000;

Useful life (N) = 4 years;

Estimated salvage value (S) = $0

Determine the optimal time to switch from double-declining balance to straight-line depreciation and the resulting depreciation schedule (depreciation allowances and book values.)

Year	Dn (DDB)	Bn (DDB)		Dn (SL)	Bn (Final)
0
1
2
3
4

What year should you switch?