please i really need to know the workings around this calculation on this table at 14 knot in fuel cost savings by slowing down and revenue loss by slowing down vice versa. please i need a better explaination to this table. thanks

Ship speed knots Fuel consumption tons per day FUEL COST SAVING by slowing down S/day S/day REVENUE LOSS by slowing down S/day $/day 33.9 27.2 21.4 16.5 2,697 5,016 6,979 674 1,254 1,745 1,440 2.880 4,320 4,320 8,640 12,960 Assumptions: 70,000 ton cargo; 300 days a year at sea; 10,000 mile round voyage bunker assumptions freight assumptions high low low high $400/ton $100/ton $10/ton $30/ton Case 1: fuel cost $100/ton and low freight rates - he would save $1.745 million on bunkers but would lose $4.3 million revenue, so it is not worth slowing down. Case 2: fuel cost $400/ton and low freight rates - he would save $6.9 million and lose $4.3 million revenue so it is worth slowing down. Case 3: fuel cost $400/ton and high freight rates - he would save $6.9 million costs but would lose $12.9 revenue, so it is not worth slowing down. Ship speed knots Fuel consumption tons per day FUEL COST SAVING by slowing down S/day S/day REVENUE LOSS by slowing down S/day $/day 33.9 27.2 21.4 16.5 2,697 5,016 6,979 674 1,254 1,745 1,440 2.880 4,320 4,320 8,640 12,960 Assumptions: 70,000 ton cargo; 300 days a year at sea; 10,000 mile round voyage bunker assumptions freight assumptions high low low high $400/ton $100/ton $10/ton $30/ton Case 1: fuel cost $100/ton and low freight rates - he would save $1.745 million on bunkers but would lose $4.3 million revenue, so it is not worth slowing down. Case 2: fuel cost $400/ton and low freight rates - he would save $6.9 million and lose $4.3 million revenue so it is worth slowing down. Case 3: fuel cost $400/ton and high freight rates - he would save $6.9 million costs but would lose $12.9 revenue, so it is not worth slowing down