We need to find the profit made per share first.
Then multiply profit per shares to total shares sold
Profit = Selling price - Cost price
Where:
Selling price = $26.40 per dollar
Cost price = $21.45 per dollar
Profit = $26.40 per dollar - $21.45 per dollar = $4.95 per share.
Gross profit = Profit per share x No of shares.
Gross profit = 4.95 x 120 = $594