They are ideal for selling a small holding for the lowest possible commission.

对于以尽可能低的佣金出售少量持股来说，它们是理想的。

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The selling broker is then required to assign a portion of the commission to the buyer broker.

卖方经纪人则被要求分给买方经纪人一部分佣金。

《柯林斯英汉双解大词典》

This would be like paying your real estate broker a commission for selling you your house and then paying the broker a residual commission for as long as you occupy the house.

这好比是委托不动产经纪人卖掉你的房子，你支付佣金，然后，只要你的房子还没卖出去，你就要支付剩余佣金。

youdao

The decrease is primarily attributable to the continuing effects of actions taken in conjunction with Clearwire's cost cutting initiatives in 2011 including lower employee-related expenses resulting from headcount reductions and outsourcing of the customer care function, reduced marketing spend, as well as decreased selling commission expense associated with our no-contract product offering which was launched at the beginning of 2012.

ENGADGET: Clearwire sees wholesale revenues dip, LTE delays as it posts a $41.3 million net loss in Q3

Item No. 3 is the commission, paid when buying and selling (unless your brokerage offers commission-free trades).

WSJ: Calculating the Costs of Investing in ETFs

Consumer group Which? says that some bank staff were on an 87% commission for selling PPI.

BBC: PPI: How did the bill ever get so big?