How do you bench mark the cost savings prior to engaging negotiations with your Partners (Supplier's)?

Working with suppliers in a professional manner the existence of an essential resource more than his replacement less in efficiency, experience and not quality

Pressure on supplier of time and the speed of contracting under the influence of thirst sale or sales with an anesthetic prices

Good manners and follow the instructions and reach the desired goal and adapt to the environment and the area of work and accomplish the tasks required with eagerness