St. Johns River Shipyards is considering the replacement of an 8-year-old riveting machine with a new one that will increase earnings from $24,000 to $46,000 per year. The new machine will cost...

St. Johns River Shipyards is considering the replacement of an 8-year-old riveting machine with a new one that will increase earnings from $24,000 to $46,000 per year. The new machine will cost $80,000, and it will have an estimated life of 8 years and no salvage value. The new riveting machine is eligible for 100% bonus deprecia­ tion at the time of purchase. The applicable corporate tax rate is 25%, and the firm's WACC is 10%. The old machine has been fully depreciated and has no salvage value. Should the old riveting machine be replaced by the new one? Explain your answer.