促销订单的销售佣金
对于包含促销的订单，我们会针对应用促销后的总销售价格收取销售佣金。总销售价格包含商品价格及所有运费、礼品包装费或其他费用。视商品分类情况，我们可能会针对买家订单中的所有商品收取最低销售佣金。
示例 1
如果买家购买商品“A”并免费获赠商品“B”，那么我们会针对商品“A”的总销售价格收取销售佣金。视商品分类情况，我们可能会针对商品“A”和商品“B”收取最低销售佣金。
示例 2
如果商品“A”有折扣，那么我们会针对应用折扣后的总销售价格收取销售佣金。视商品分类情况，我们可能会收取最低销售佣金。
亚马逊官网原文详情：
Referral fees for orders with promotions
For orders that include promotions, we charge a referral fee on the total sales price after applying the promotion. Total sales price includes the product price and any shipping, gift wrap, or other charges. Depending on the product category, a minimum referral fee can apply to all products in the buyer's order.
Example 1
If a buyer purchases product "A" and gets product "B" for free, we charge a referral fee on the total sales price of product "A." Depending on the product category, both products "A "and "B" might be subject to a minimum referral fee.
Example 2
If there is a discount on product "A," we charge a referral fee on the total sales price after applying the discount. Depending on the product category, a minimum referral fee may apply.
文章来源：亚马逊官方网站
