1. On January 1, Year 7, Colorado Corp. purchased a machine having an estimated useful life of 8 years and no salvage value. The machine was depreciated by the double-declining- balance (DDB) method for both financial statement and income tax reporting. On January 1, Year 9, Colorado justifiably changed to the straight-line method for both financial statement and income tax reporting. Accumulated depreciation at December 31, Year 8, was $525,000. If the straight-line method had been used, the accumulated depreciation at December 31, Year 8, would have been $300,000. The retroactive adjustment to the accumulated depreciation account on January 1, Year 9, as a result of the change in depreciation method is A. $0 B. $225,000 C. $300,000 D. $525,000