39, EBAY详细答案。

产品包运费99centS，只拿你Link的小铝片做例子，换个产品算法不同。 These are all based on the best scenerio.

如果Seller在中国，从中国运。
Ebay listing fee: 3cents (because seller has over 20,000listing, otherwise more expensive)
Ebay transaction fee: 10%=10cents
paypal transaction fee: 2.1%+30cents=32cents (because seller has over $40,000 sales per month, otherwise more expensive)
Product cost: 10cents (just my guess)
labor cost: $480/30day/500 = 3 cents
               $480/month/worker (RMB3000/month) can handle 500 orders of this product per day (other bigger product may cost more)
               Note: this worker works 30 days a month, 10 hours a day.
Envelop and postage： 25cents (my guess)
warehouse and admistration cost: 1cent
Total cost: 3+10+32+10+3+25+1= 84 cents

Seller net profit = 16 cents/order
monthly net profit = 0.16 * 30,000 = $4800 ， Pretty Good ！！

如果Seller在美国，从美国运。Seller net loss = 24 cents/order
Ebay listing fee: 3cents (because seller has over 20,000listing, otherwise more expensive)
Ebay transaction fee: 10%=10cents
paypal transaction fee: 2.1%+30cents=32cents (because seller has over $40,000 sales per month, otherwise more expensive)
Product cost: 15cents (just my guess)
labor cost: $2000/22day/400 = 23 cents
               $2000/month/worker (including insurance and employment taxes) can handle 400 orders of this product per day (other bigger product may cost more)
               Note: this worker works 22 days a month, 8 hours a day.
Envelop and postage： 35cents (my guess)
warehouse and admistration cost: 5cent (my guess)
Total cost: 3+10+32+15+23+35+5= 123 cents
Seller net loss = 24 cents/order

所有跟帖： 

• 女婿说的诱饵 -392- ♂ (53 bytes) () 12/19/2013 postreply 22:30:37

• 肯定不是卖99cent赚的钱，是靠$1.99, $2.99产品赚的钱，对于刚做生意不久的小年轻， -云起千百度- ♀ (92 bytes) () 12/19/2013 postreply 22:31:23

• 这些是销量惊人的产品，前两年会大赚，现在利润率低，但国内劳资便宜，还有赚，所以 -云起千百度- ♀ (94 bytes) () 12/19/2013 postreply 22:51:12

• 谢谢！ 这个真是血汗钱啊 这下我明白资本论了 :) -392- ♂ (1341 bytes) () 12/19/2013 postreply 22:27:25

• 这个还需要高超的管理运营能力。 -392- ♂ (0 bytes) () 12/19/2013 postreply 22:31:54

• 没错，练着练着可能就做大了。 -云起千百度- ♀ (0 bytes) () 12/19/2013 postreply 22:37:55

• 你这个邮资是对普通人的。 这种每月30，000封的有大优惠的。 中国现在鼓励出口， -云起千百度- ♀ (166 bytes) () 12/19/2013 postreply 22:36:16

• 中国政府和人民在支撑美国的低物价 -392- ♂ (177 bytes) () 12/19/2013 postreply 23:22:54

• 好文，谢谢分享！ -星光华逸- ♂ (0 bytes) () 12/20/2013 postreply 00:28:51

• what about the labor cost of listing the item, sourcing the item -bumbumbum- ♂ (171 bytes) () 12/20/2013 postreply 08:59:03