The Plastics Division of Weston Company manufactures plastic molds and then sells them to customers for $70 per unit. Its variable cost is $30 per unit, and its fixed cost per unit is $10. Management would like the Plastics Division to transfer 10,000 of these molds to another division within the company at a price of $40. The Plastics Division has excess capacity of 10,000 units for plastic moldings. What is the minimum transfer price that the Plastics Division should accept