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ABC stock price peaked at 6000% of it's I.P.O. price than 12 years after the I.P.O. Suppose that $10,000 invested in ABC at it's I.P.O. price had been worth $600,000.00 after 12 years, what would the nominal interest rate compounded annual be? The annual rate of return would have been %. (Round to 1 decimal place, if needed.)