Use the commission schedule from Company A shown in the table to find the annual rate of interest earned on the investment (Note commissions are rounded to the nearest cent) Principal (Value of Stock) Under $3,000 3,000 to $10,000 Over $10,000 Commission $25 + 1 8% of principal $37 + 1 4% of princa! $107 + 0 7% of principal An investor purchases 299 shares at $10 27 a share, holds the stock for 48 weeks, and then sells the stock for $16 45 a share The annual rate is(Round to five decimal places