Direct labor, direct materials, and manufacturing overhead. [Choose] Costs that are expensed in the period they are incurred. Period costs Sales less variable expenses. [Choose) Maximum number of units that can be produced in the period. [Choose) A costing method that includes only variable manufacturing costs. Variable costing An income statement format that focuses on cost behavior. [Choose Sales less cost of goods sold. [Choose A costing method that includes all manufacturing costs. [Choose] Contribution margin divided by sales. [Choose) Sales less COGS Gross margin