Included are entries from a journal kept by a reporter for the Oquawka Spectator newspaper who traveled with one of the wagon trains, which apparently both departed from Oquawka on the 25th of March, 1850.
The double declining balance depreciation method is an accelerated depreciation method that counts twice as much of the assetâs book value each year as an expense compared to straight-line depreciation. The formula is:
Step 3: Multiply the asset's book value by the double depreciation % to get the current year depreciation. In the first year, the book value is the same as its cost. asset book value * double depreciation % = current year depreciation. Step 4: Subtract the current year depreciation from the book value of the asset. The result will be used as the new book value used to calculate depreciation for the next year. book value of asset - current year depreciation. Example: ABC Company bought a tractor with a 3 year useful life and a $2,000 residual value for $30,000. Step 1: 100 / 3 = 33.33% annual depreciation.