Creating and Using a Cost Formula Big Thumbs Company manufactures portable flash drives for computers. Big Thumbs incurs monthly depreciation costs of $15,800 on its plant equipment. Also, each drive requires materials and manufacturing overhead resources. On average, the company uses 10,400 ounces of materials to manufacture 5,200 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 $26,000 of variable manufacturing overhead resources to produce 5,200 flash drives per month. In your calculations, round variable rate per flash drive to the nearest cent. If required, round final answers to the nearest cent. Required: 1. Create a formula for the monthly cost of flash drives for Big Thumbs. Total cost of flash drives - Fixed cost +(Variable rate x Number of flash drives)