Commission = purchase price (product price + domestic delivery cost) X applicable rating rate

LEVEL	bronze	silver	gold	Sapphire	Emerald	Diamond
Conditions (number of purchases)	0~5	6~20	21~50	51~75	76~100	100~
Agency fee	5%	5%	5%	5%	5%	5%
Discount on shipping	0%	2%	4%	6%	8%	10%