价格调整的幅度为3%英语怎么说？请英语好的人帮忙解答下，非常感谢

英语请无论如何不要含混, 要跌就说 price off 3% 或要涨 price will go up 3%, 说 price has 3% adjustment (即 plus or minus 3%) 会恼人的.

我看得不是很明白,如果楼主的意思是：附件里的单价就是调整后的5月份的价格的话,可以这样翻译：

We adjusted prices in May due to cost increase of raw material.

Enclosed ( Attached) is the up to date price list for your reference.

So sorry for any inconvenience caused.

如果不是上面的理解的话,直译如下：

We made come changes of prices due to cost increase of raw material.Pls kindly check attachment.

What's more,our price will be adjusted again in May.So sorry for the inconvenience it caused.

Announcement of Price Ajustment

Due to the price of raw material of Nickel is continually rising, we have to raise the prices of the relevant fastener products from Aug.18,2009.(Tuesday),the increase rate was around 5%. The specific rate varies by the products, please see the detailed price list.

With immediate effect, all new orders with delivery date from August 18th (including the date of August 18th ) will be executed according to the new pricethe confirmed contracts before August 18th (excluding the date of August 18th) will be executed according to the original prices stipulated on the contracts.

We are sorry to bring you all the inconvenience and in hope of that you would understand us as ever befor.

Our company reserves the right of authority for the interpretation of this price adjustment.

简释：

1."由于镍价上涨，上游原料行情紧张，为及时反映市场动态" 之句为了简洁起见缩略为一句话“由于原材料镍价持续上涨”。

2.后面的具体执行办法则尽量详细，并在括号内写出新订单（包括8月18日）执行新价格，老订单（不包括8月18日）执行老价格。这个一定要写清楚，否则会引起不必要的纠纷。

---