A merchandiser plan to sell 12,400 units next month at a selling price of $110 per unit. It also gathered the following cost estimates for next month: cost of goods sold $60 per unit sold, advertising expense $150,000per month, Depreciation expense $70,000per month, Shipping expense $100,000 per month + per $10 per unit sold, administrative salaries $50,000 per month, sales commissions 5% of sales, and insurance expense $15,000 per month. What is the estimated total contribution margin for next month?