answer: #Person2# suggests $ 800 per set CIF London and the commission is three percent. #Person1# asks for a higher commission. #Person2# agrees to give four percent.
documents: #Person1#: What price do you suggest for 300, 000 sets of Article No. 2323 with London as the destination port?
  #Person2#: Let me see. It's $  800 per set CIF London.
  #Person1#: What commission terms can you offer?
  #Person2#: Usually the commission is three percent of the net invoice amount after deduction of discounts.
  #Person1#: Couldn't you raise the commission to five percent?
  #Person2#: Considering our good relationship and our future business, we give you four percent. That's the best we can do. We can't go any further. What would you say to it?
  #Person1#: Then I'll accept it with thanks.