Final answer:
The first year's depreciation expense is $84,000, calculated as 9/12 of the annual depreciation expense, and the second year's depreciation expense is $78,400, after reducing the book value by the first year's depreciation.
Step-by-step explanation:
The question is asking for the calculation of depreciation expense using the double-declining-balance method for a trencher purchased by Cyclone Co. for $280,000 with a salvage value of $40,000 and a five-year useful life.
To calculate the first year depreciation expense, we would first determine the double-declining rate: (1 / 5 years) * 2 = 40%. Since this is a partial year calculation starting from April 1st, we will calculate depreciation for 9 months (April through December) out of the full year.
The first-year depreciation expense would be:
$280,000 (cost) * 40% (rate) = $112,000.
Since it's for 9 months only:
$112,000 * (9/12) = $84,000.
For the second year, we must first reduce the book value of the asset by the first-year depreciation:
$280,000 - $84,000 = $196,000.
Now we apply the 40% again:
$196,000 * 40% = $78,400 second-year depreciation expense.