The following static budget is provided: Per Unit Total Sales $ 50 $ 700,000 Less variable costs: Manufacturing costs 20 280,000 Selling and administrative costs 10 140,000 Contribution margin $ 20 $ 280,000 Less fixed costs: Manufacturing costs 80,000 Selling and administrative costs 130,000 Total fixed costs 210,000 Net income $ 70,000 What will be the overall volume variance if 12,000 units are produced and sold?