The following is 2011.1.1 of Listed company A. Information on tangible and tangible assets.

Cost of Acquisition: 500,000 Service life 10 years Residual value: 100,000 Estimated production: 100,000 units Estimated working time: 25,000 hours

Calculate the depreciation cost of 2012.12.31.

1. straight line method 2. Training Sum Method 3. Proportion proportional method (actual production: x1: 20,000; x2: 30,000; x3: 25,000) 4. Double Sense Balance Method 5. Working time proportional method (actual working time: x1: 3,000; x2: 2,000; x3: 2,000 6. Statistical method (The amortization rate is rounded up to the first decimal place: 12.34% => 12%)

In Listed company A 2011.1.1., 4,000 telephone poles were replaced at 1,000 each. Telephone poles per replacement were installed at 500 each.

7. If Listed Company A applies the disposal method, what is the depreciation cost of telegraphers? 8. If Listed company A applies the replacement method, what is the depreciation cost of telegraphers?