1. Let's state the problem: You want to buy 200 shares at P500 each with a 2.1% commission charged by the broker. 2. Calculate the cost of the shares without commission: $$ \text{Cost of shares} = 200 \times 500 = 100000 $$ 3. Calculate the commission amount: $$ \text{Commission} = 2.1\% \times 100000 = 0.021 \times 100000 = 2100 $$ 4. Calculate the total cost including commission: $$ \text{Total cost} = 100000 + 2100 = 102100 $$ 5. Therefore, the total cost of buying the stock is P102100.