Margin is not lost only in the final negotiation. A salesperson can give it away in the very first conversations

Companies often respond to declining margin by tightening discount approvals or running negotiation training. Yet value can be lost much earlier through weak preparation, insufficient discovery and concessions for which the customer gives nothing in return. According to Sales & Marketing Management, McKinsey estimates that a one-percent decline in realized price can cost a typical S&P 1500 company about eight percent of operating profit. Protecting margin therefore begins before the price discussion.