Suppose, you could be a 'shark' (investor) on the private equity show 'Shark Tank.' You like a candidate's idea, and you agree to cover the business's loss in the first year of operation in the amount of $90,000. You expect, though, that your income would be raised $8,000 a year for the following next twenty years as a result of this smart investment. 

What is the internal rate of return for this investment?