Cost (or MV) of each share = FV of each share + Premium = Rs 50 + Rs 100 = Rs 150
Number of shares purchased = 200
∴ Amount invested = Cost of each share × Number of shares purchased = Rs 150 × 200 = Rs 30,000
Total dividend received = Number of shares purchased × Dividend received on each share = 200 × = Rs 5,000
Selling price of each share at discount of Rs 10 = Rs 50 − Rs 10 = Rs 40
∴ Selling price of 100 shares at discount of Rs 10 = Rs 40 × 100 = Rs 4,000
Selling price of each share at premium of Rs 75 = Rs 50 + Rs 75 = Rs 125
∴ Selling price of 100 shares at premium of Rs 75 = Rs 125 × 100 = Rs 12,500
Total money received on selling 200 shares = Rs 4,000 + Rs 12,500 = Rs 16,500
Brokerage paid on each trade = Rs 20
∴ Total brokerage paid on 3 trades = Rs 20 × 3 = Rs 60
Net income of Mr. D'souza = Total money received on selling 200 shares + Total dividend received − Total brokerage paid on 3 trades
= Rs 16,500 + Rs 5,000 − Rs 60
= Rs 21,440
Since net income of Mr. D'souza is less than the amount invested, so Mr. D'souza incurred a loss.
Loss incurred = Amount invested − Net income of Mr. D'souza = Rs 30,000 − Rs 21,440 = Rs 8,560
Thus, Mr. D'souza incurred loss of Rs 8,560.