There is a formal style. When the negotiations would be in terms of price, quality, or the agreement of the business, such as sales and purchase contract. Business merger
An activity that looks official. When the negotiations are a matter of price, quality or terms of the complexity of doing business such as trading contracting business merger.
Is the activity with formal; When the negotiations will be in terms of price, quality, or the terms of business, such as complicated trading business contract.