A machine that costs $$8,000$ is expected to operate for $10$ years. The estimated salvage value at the end of $10$ years is $$0.$ The machine is expected to save the company $$1,554$ per year before taxes and depreciation. The company depreciates its assets on a straight$-$line basis and has a marginal tax rate of $35$ percent. What is the internal rate of return on this investment?