I need help on part (b) finding the cost of goods sols as well as finsding the selling and administartive expense.

On problem (3) I cant find the add/deduct manufacturing overhead cost

Walsh Company manufactures and sells one product. The following information pertains to each of the company's first two years of operations: Variable costs per unit: Manufacturing Direct materials Direct labor Variable manufacturing overhead $ 30 $11 $6 $ 5 Variable selling and administrative Fixed costs per year: $240,000 Fixed selling and administrative expenses 60,000 Fixed manufacturing overhead During its first year of operations, Walsh produced 50,000 units and sold 40,000 units. During its second year of operations, it produced 40,000 units and sold 50,000 units. The selling price of the company's product is $53 per unit