There is no handling fee for paper and silver in theory, but in the actual transaction process, there will be a transaction price difference, which is the price difference. This is equivalent to the transaction fee.

Like investing in stocks, buying and selling paper and silver requires a handling fee. It is understood that at present, paper and silver transactions need to pay 0.04 yuan per gram (two-way transactions are 0.08 yuan per gram, buying and selling). The paper and silver transaction fees of major banks, that is, the spread, are 0.04 yuan per gram.

Therefore, paper and silver investors need to subtract 0.08 yuan (0.08 yuan per gram) from the bid-ask spread, which is the profit earned by investors.