5. A consistent. systematic approach provides the dealer with information on whether to wholesale or to retail a trade-in and the cost required to restore the unit to retail condition. 一个可靠的。系统的方式为经销商提供信息。让他们决定是否应该批发或者用以旧换新的零售方式经营。以及产品翻新到可以零售的成色所需的成本。