1.

Use the commission schedule from Company A shown in the table to find Principal (Value of Stock) Commission the annual rate of interest earned on the investment. (Note: commissions Under $3,000 $25 + 1.8% of principal are rounded to the nearest cent.) $3,000 to $10,000 $37 + 1.4% of principal Over $10,000 $107 + 0.7% of principal An investor purchases 101 shares at $11.09 a share, holds the stock for 42 weeks, and then sells the stock for $15.63 a share. The annual rate is %. (Round to five decimal places.)