Capital Foods purchased an oven 7 years ago for $75,000. The oven is being depreciated over its estimated 10-year life using the straight line method to a salvage value of zero. Capital Foods is planning to replace the oven with a more automated one that will cost $120,000 installed. If the old oven can be sold for $25,000, what is the tax liability? Assume a marginal tax rate of 30 percent.