Eight years ago, a company purchased an injection molding machine at $40,000. It has been depreciated according to conventional straight-line method (book depreciation) over a 12-year life. The estimated salvage value at the end of 12 years (from the purchase) was $4,000. The machine has a current market value of $15,000. Assume the company purchases a new machine at a cost of $50,000 with a salvage value of $5,000 and a 10 year life. The firm's income tax rate is 40% and their discount rate is 10%.

What is the net depreciation tax shield during year three?