Rebate: reimbursement to the client, usually at the end of the year, that depends on the quantity of goods purchased over a period.
贴现：对客户的退款，一般在年底，其多少取决于在一定时期内购买的产品数量。
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Applying principle and methods of management economics, discusses selling quantity decision based on composite variety for profit maximization in the case of rebate system.
Applying principle and methods of management economics, discusses selling quantity decision based on composite variety for profit maximization in the case of rebate system. It is proved by an example.