Partial budgeting is a tool that analyzes the costs and benefits of a proposed change to farm operations by considering additional costs, reduced revenue from existing activities, new revenue opportunities, and costs that can be reduced. It is useful for decisions around new technologies, adding or changing enterprises, leasing equipment, modifying practices, or making capital improvements. An effective partial budget clearly outlines additional costs, reduced revenue, additional revenue, and reduced costs to determine if a proposed change will be profitable.