must use excel. please show your work and equations

James Taylor, a Chief Officer at Nike, has recently been arrested by the SEC for committing fraudulent trades and building corrupt portfolios. The SEC calculated that his office started with an investment of $2,873 and then 11 years his office had $22,870. At what interest rate did James Taylor grow his money illegally? Please round to three decimal places. If your answer is 67.1%, please enter .671