Neco 2018 Commerce Question 23

An investor buys 200 shares of XYZ at \\(₦1,200\\) each, paying a brokerage commission of \\(0.5\\%\\) of the transaction value. Two months later he buys another 300 shares at \\(₦1,350\\) each, with the same commission rate. Before selling, the company announces a 2‑for‑1 stock split, doubling the number of shares held and halving the cost per share. The investor then sells 400 shares at \\(₦1,500\\) each, paying a commission of \\(0.5\\%\\) on the sale and a capital gains tax of \\(10\\%\\) on the profit. Determine (a) the average cost per share after the split, (b) the net proceeds from the sale after commissions and tax, and (c) the overall profit or loss on the whole transaction. Give monetary values rounded to the nearest naira.