2565 yuan empty 3 lots 2545 liquidation profit 20 yuan *3 lots * 10 ton/hand =600 yuan;
2530 empty 2 lots and 2545 liquidation profit-15 yuan *2 lots * 10 ton/lot =-300 yuan (this is a loss);
2500 empty 1 hand 2545 liquidation profit -45 yuan * 1 hand * 10 ton/hand =-450 yuan (this is also a loss);
The total profit and loss is 600-300-450=- 150 yuan, and the loss of this operation is 150 yuan. The above fees are not included.