Tell me the current rate for RMB, please.
请告诉我人民币的现价。
What's your selling rate for RMB yuan in notes today?
你们今天人民币现钞的售价是多少？
What's the dollar going for today?
美圆今天的售价是多少？
Our buying rate for notes is 523 yuan for 100 dollars.
我们100美圆的现钞买入价是523元。
It's 200 French francs at today's selling rate.
今天的卖出价是200法国法郎。
The buying rate of U.S. dollar notes is 460 yuan per hundred dollars.
美圆现钞买入价是100美圆付460元。

Useful Phrases
buying rate 买进价格
selling rate 卖出价格

　
And how much will it be in Japanese currency?
换成日本币是多少？
How much would I get for 300 Japanese yen?
300日圆可兑换多少钱？
I'd like to know the exchange rate for German marks.
我想知道德国马克的兑换率。
What rate are you giving?
你们提供的兑换率是多少？
What's the exchange rate today?
今天的兑换率是多少？
Please tell me what you would give me for my U.S. dollars.
请告诉我这些美圆可以兑换多少钱。
Please tell me the current rate for sterling.
请告诉我英国货币的现行兑换率。
If you'll wait a moment, I'll find out the rates of exchange.
请等一会儿，我查一下兑换率。
Please wait a moment. I'll find out the exchange rate between U.S. dollars and RMB.
请等一会儿，我查一下美圆对人民币的兑换率。
It's 470 yuan for 100 dollars.
100美圆可兑470元。
The exchange rate today is 200 yen to the pound.
今天的兑换率是一英镑可兑200日圆。
The rate for traveler's cheques is 300 yuan against 100 dollars.
旅行支票的兑换率是100美圆兑300元。
These dollars are worth 1,000 yuan.
这些美圆可换1000元。
　
Useful Phrases
exchange table, conversion table 汇兑换算表
foreign exchange 外汇
exchange rate 外汇率
conversion rate 折合率
foreign exchange restriction 外汇限额
foreign exchange quotations 外汇行情
to check the rate for sb. 查牌价