So your cost basis on your purchase is: (90.96x3)+10= 282.88 In order to earn at least one penny more than 282.88 you would sell for proceeds of 282.89 after commission so your shares would be worth 292.89 before commission.

Percentage gain wise you would have (292.89/282.89)-1= 3.54% rounded up to avoid loss from rounding.

So in funded my account with $350 and I bought 3 shares of (XYZ) at $90.96 per share. My commission is $10 to buy and $10 to sell. What percentage on each share would I need to get in order to beat commission fees and make a profit?