You lead a project team that is reviewing estimates of a 3-year project with: labor cost of $18.90 per unit; raw materials cost of $21.63 per unit; fixed costs of $8,000 monthly, and $15,000 in annual depreciation. Your team forecasts annual sales at 2,400 units total throughout the life of the project. What are the total annual variable costs? $316,500 $126,000 $220,500 $331,500