Uso the commissicn schedula from Company A shown in the table io find the annual rate of intorest earned on the investment. (Note. commistion are rounded to the nearest cent.) Principal Nalue of Stoch) Commission Under $3,000 $3,000 bo $10,000. Over $10,000 An investor purchases 128 shares at $10.81 a share, holdt the stock for 23 weeks, and then sels the stock for $21 56 a share 525+1.6% of principal 537+1.6% of principal 5107+0.7% of princpat The annual rate is (Round to fve decimal places)