National Bottles Corporation National Bottles Corporation is considering the replacement of one of its bottling machines with a new one that will increase revenues from $25,000 to $31,000 per year and reduce cash operating costs from $12,000 to $10,000 per year. The new machine will cost $48,000 and have an estimated life of 10 years with no salvage value. The firm uses straight-line depreciation and is subject to a 50% tax rate. The old machine has been fully depreciated and has no salvage value. Required: What are the free operating cash flows after taxes