Answer:
[tex]14.0\text{ \%}[/tex]Explanation:
Here, we want to get the rate of return
We can calculate that by using the formula below:
[tex]\text{Rate of return = }\frac{final\text{value - initial value}}{\text{ initial value}}\times\text{ 100\%}[/tex]The initial value is as follows:
40 shares at $15 per share is:
[tex]40\times15\text{ = \$600}[/tex]The final value is the value at which it was sold less the commission on sales
Mathematically, we have that as:
[tex]690-6\text{ = \$684}[/tex]Thus, we have the rate of return as follows:
[tex]\frac{684-600}{600}\times100\text{ \% = }\frac{84}{600}\times\text{ 100 \% = 14.0\%}[/tex]