Exercise 18-2 (Part Level Submission) Shingle Enterprises is considering manufacturing a new product. It projects the cost of direct materials and rent for a range of output as shown below. Output Rent Direct in Units Expense Materials 1,000 5,060 4,048 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,00010,120 29,652 5,060 7,286 8,096 8,400 8,096 11,200 8,096 14,000 8,096 16,800 8,096 19,600 8,096 22,400 10,000 11,000 10,120 10.120 35,420 44.528