write:•Costs can also be categorized as to how they are used in decision making. •Costs can also be distinguished by the way they change as activity or volume levels change.

2eSlide # 3Q1: Different Ways to Describe Costs•Costs can be defined by how they relate to a cost object
which is defined as any thing or activity for which we measure costs.•Costs can also be categorized as to how they are used in decision making.•Costs can also be distinguished by the way they change as activity or volume levels change.