One dry bulk vessel of 30,000 dwt runs for Port B to transport grains to Port C. The cargo information is: soybean of 30,000 t, freight rate is $10/t, FI, the brokerage commission is 3%. The route information: 384 n miles from Port A to Port B, 1080 n miles from Port B to Port C; The ship information: the speed at ballast is 16 knots, the speed at laden is 15 knots, the fixed costs per day are $10,000, the fuel cost per sailing day is $15,000, the daily cost of the diesel oil consumption at berth is $5000. The port information: The loading time at Port B is expected to be 4 days with port charges of $28,500, the discharging time at Port C is about 3 days with port charges of $21,500. Q: Is it profitable to perform this shipment or not? (the revenue tax rate is 3% of the total revenue)