Depends on how many shares you have. I'm a use their example 1, but add shares.
Tom buys 300,000 shares of XYZ Inc. with an average execution price of $0.25 per share. The principal amount of the trade is $75000.00 (300,000 X $0.25). In addition to his regular real-time trade commission, $9.95 in this example, Tom also pays a $2100.00 low-priced security surcharge (300,000 X $0.007) for a total commission of $2,109.95