Respuesta :
Answer:
80%; 20%
Explanation:
Concessions sometimes called trade off refers to the decision of one party to yield to the demands or positions of the other party in a negotiation either willing or not willingly. Concessions is sometimes based on the length of the negotiation. The longer the negotiations, the more likely a concession is reached by on of the party. Roughly eighty percent of the concessions in a negotiation are made during the last twenty percent of the negotiation: