Delta Company produces a single product. The cost of producing and selling a single unit of this product at the company's normal activity level of 60,000 units per year is: Direct materials $5.10 Direct labor $3.80 Variable manufacturing overhead $1.00 Fixed manufacturing overhead $4, 20 Variable selling and administrative expense $1.50 Fixed selling and administrative expense $2.40 The normal selling price is $21 per unit The company's capacity is 75,000 units per year An order has been received from a mail-order house for 15,000 units at a special price of $14.00 per unit. This order would not affect regular sales. If the order is accepted, by how much will annual profits increase or decrease? (The order will not change the company's total fixed costs.) increase by $22,000 decrease by $31,000 decrease by $14,000 increase by $39,000