Total cost price = ₦9,200.00 + ₦1,500.00 = ₦10,700.00 Selling price = ₦13,400.00 Gain = ₦13,400.00 - ₦10,700.00 = ₦2,700.00
∴ % gain = ₦2,700.00₦10,700.00× 100% = 25.23%