Elmdale Company has a machine that affixes labels to bottles. The machine has a book value of $80,000 and a remaining useful life of 3 years and no salvage value. A new, more efficient machine is available at a cost of $300,000 that will have a 3-year useful life with no salvage value. The new machine will lower annual variable production costs from $520,000 to $410,000. What is the effect on net income over the 3 years if Elmdale Company chooses to replace the equipment? Should Elmdale replace the equipment?