英文商業信件-15分一定不要直譯

信件大致內容是
告訴客人產品需加價10% ,原因是由報價到現在貨幣匯率下趺了10% 所以加價是非不得以

Dear customers,
Please be noted that with effect from dd/mm/yy, there will be an adjustment of prices of our quoted products. The adusted prices will be increased approximately 10 percent according to the last quotation. We try not to impose such adjustment but the exchange rate dropped more than ten percent within these days. We are sorry for the short notice since this sudden arrangement is beyond our control. We apologise for the inconvenient caused.
Regards