Suppose that your company bought a product for $200,000 and put it in service in 2015. The product you bought will be depreciated with the GDS using half-year convention. The cost basis for the product is $200,000. If we assume that this product is an office furniture;
(1) What is the depreciation amount in the second year?
(2) What is the cumulative depreciation amount in the first three years?
(3) What is the estimated book value at the end of the year 2020?