NUI Corporation provided the following information regarding its only product: Sale price per unit Direct materials used Direct labour incurred $65.00 $160,000 $185,000 Variable manufacturing overhead $190,000 Fixed manufacturing overhead $65,000 Fixed selling and administrative expenses $12,000 Units produced and sold 10,000 Assume no beginning inventory Assuming there is excess capacity at NUI Corporation, what would be the effect on operating income of accepting a special order for 1,000 units at a sale price of $55 per product? (NOTE: Assume regular sales are not affected by the special order.) 1) Increase by $55,000 2) Increase by $1,500 3) Increase by $108,500 4) Decrease by $1,500 52