Big Thumbs Company manufactures portable flash drives for computers. Big Thumbs incurs monthly depreciation costs of $15,000 on its plant equipment and monthly advertising costs of $3,000 to place advertisements in magazines. Also, each drive requires materials and manufacturing overhead resources. On average, the company uses 10,000 ounces of materials to manufacture 5,000 flash drives per month. Each ounce of material costs $3.00. In addition, manufacturing overhead resources are driven by machine hours. On average, the company incurs $22,500 of manufacturing overhead resources to produce 5,000 flash drives per month.