A: How much did it cost to purchase the stock? (# of shares x cost per share) (add cost of commission) 800 x 7.94 = 6352 6352 + 16 = 6368
B: Find the net gain or loss. (# of shares x selling price per share) (commission - selling price) (sale of shares - total cost) 800 x 8.75 = 7000 7000 - 16 =6984 6984 - 6368 = 616