Capital Foods purchased an oven 5 years ago for $45,000. The oven is being depreciated over its estimated 7-year life using MACRS depreciation to a salvage value of $5,000. Capital is planning to replace the oven with a more automated one that will cost $150,000 installed. If the old oven can be sold for $30,000, what is the tax liability? Assume a marginal tax rate of 40 percent.