1. A plant asset purchased for $600,000 has an estimated life of 10 vears and a residual value of $30,000. Depreciation for the second year of use. determined by the double-declining-balance method is $ 2. A plant asset purchased for $528,000 at the beginning of the year has an estimated life of 5 years and a residual value of $48,000. Depreciation for the third year, determined by the sum-of-the-years-digits method is $ 3. A plant asset with a cost of $648,000, estimated life of 5 vears, and residual value of 5108,000, is depreciated by the straight-line method. This asset is sold for $456.000 at the end of the second year of use. The on the disposal is $