1. The price you offered is above previous prices.
你方报价高于上次。
还能这样说：
The price you quoted is higher than the previous one.
The price you quoted exceeds the price you quoted last time.
应用解析：
above and beyond 大于，多于，远于；
above oneself 自高自大，自命不凡；情绪不正常，无法控制自己

2. To conclude the business, you need to cut your price at least by 5%, I believe.
我认为要做成这笔交易，您至少要降价5%。
还能这样说：
The business cannot be concluded unless the price is reduced by 5%.
To have this business concluded, you need to lower your price at least by 5%.
应用解析：
on business 因公，有事；有明确的目的；
out of business 失业，破产；损坏，受伤

3. We could reduce our price by 5% if you place a substantial order with us.
如果你们订货量大的话，我们可以减价5%。
还能这样说：
If you want for such a big quantity, we can give you a discount of 5%.
If you can make a big order with us, we can discount the price with 5%.
谚语：
A dog will not howl if you beat him with a bone.
骨头打狗，狗不叫。

4. Can you cut down the price for me?
你们可以降低价格吗？
还能这样说：
Could you reduce the price for me?
Could you lower the price for me?
应用解析：
cut a fat hog 虚摆架子，虚张声势