Homework: 3.1 Simple Interest Save Score: 0 of 1 pt 17 of 18 (15 complete) HW Score: 72.22%, 13 of 18 pts 3.1.73-BE Question Help Use the commission schedule from Company B shown in the Principal (Value of Stock) Commission table to find the annual rate of interest earned on the Under $3,000 $32+ 1.8% of principal investment. (Note: commisions are rounded to the nearest $3,000 - $10,000 $56 + 1.% of principal cent.) Over $10,000 $106 + 0.5% of principal An investor purchases 383 shares at $35.58 a share, holds the stock for 328 days, and then sells the stock for $50.63 a share. Assume a 360-day year. The annual rate of interest is %. (Round to three decimal places.) Enter your answer in the answer box and then click Check Answer. All parts showing Clear All Check