Thank you for your proposal.You want to lower our costs. It cannot be based on the price you want.Therefore, we request the following markup it you get this price?
Thank you for your offer, your price is below our cost. You can not sell at the price you want, so we add a little more value on this. Can you get this price or not.
Thank you for your offer. Your price below the cost. It could not sell according to the price you want, so we can add a little price according to this. You can accept this price?