The rate of return on the purchase of the shares of stock given its selling price and purchase price is $99.
The rate of return can be described as the total profit that is earned from the sale of the shares of stock.
Rate of return = selling price - total purchase price - commission
$330 - ($15 x 15) - $6 = $99
To learn more about profit, please check: https://brainly.com/question/26181966
#SPJ1