EXERCISE 3-5 Cost Behaviour; Contribution Format Income Statement [LO1, LO3] Parker Company manufactures and sells a single product. A partially completed schedule of the company's total and per unit costs over a relevant range of 60,000 to 100,000 units produced and sold each year is given below: Required: 1. Complete the schedule of the company's total and unit costs above. 2. Assume that the company produces and sells 90,000 units during the year at a selling price of $7.50 per unit. Prepare a contribution format income statement for the year