Savings account100 shares x $9.75 = $975, then multiplied by 0.045 will result to $43.89. Stock100 shares x $9.75 = $975, then multiplied by 0.08 will result to $78.00. So, the difference between your stocks and savings account by end of the year is $34.11 ($78.00 deducted by $43.89).Your stock is gaining higher APR by $34.11 than what's calculated in your savings account.