Windham Corporation has provided the following cost data for last year when 350,000 units were produced and sold: Raw materials...-__ $350,000 Direct labor...............$100,000 Manufacturing Overhead.......$300,000 Selling and Admin. Expense.....$200,000 All costs are variable except for $170,000 Manufacturing Overhead and $80,000 Selling and Administrative Expense. There are no beginning or ending inventories. If the selling price is $5 per unit, the net operating income from producing and selling 310,000 units would be: $620,000 $930,000 $1,550,000 $680,000