取引価格について相手と交渉した。
Torihiki kakaku nitsuite aite to koushou shita.
We negotiated the transaction price with the other party.
交渉の結果、お互いに得をする契約が結ばれた。
Koushou no kekka, otagai ni toku o suru keiyaku ga musubareta.
As a result of the negotiation, a contract was concluded that was beneficial for both parties.