Cost classifications For each of the following costs, check the columns that most likely apply (both variable and fixed might apply for some costs).

Costs

Direct

Indirect

Period

Variable

Fixed

Wages of assembly line workers

Depreciation of plant equipment

Glue and thread

Outbound shipping costs

Raw materials handling costs

Salary of public relations manager

Production run setup costs

Plant utilities

Electricity cost of retail stores

Research and development

expense