A firm has a machine it can sell for $50,000. The book value of the machine is $20,000 at the moment. If the firm sells the machine today, what is the tax implication from the sale of the machine? Assume that the tax rate is 40%. Round to the nearest penny. If tax liabilities, make it negative. Do not include a dollar sign in your answer. (i.e. If your answer is tax liabilites of $8,765,43, type -8765.43; if tax shield of $8,765.43, type 8765.43).