All calculations are made in the base currency. If you want to change this behavior, significant changes in the core of cs-cart will be required and this task will cost quite high
Please see this addon:
It can set the price in Yuan, but show in US$
If your currency exchange settings are correct then it will multiply properly.
thanks so much guys. your;s opinion and answer.
i really use .......and manage shoppping mall now.
so many people customer said "" LOOKS CHEAT""
currency i show to them YUAN ...but it does not looks right calculate for customer.
this is problem. i can not force to customer that understand... ""program default blabla"""
But you can either change the default currency to yuan or fix the exchange rate setting.