英文翻译：这份报价单如何计算,要加多少?这个客户是第一次购买此配件.

How to come up with the amount on this quotation? How much more do we need to charge? This customer is buying this device (or parts) for the first time.

How to calculate this quotation,how much does it need to add?This client is purchasing the fittings for the first time.