The Charlotte Company produces a single product. The company had the following results for its first two years of operation:

1. The Charlotte Company produces a single product.  The company had the following results for its first two years of operation:Year 1Year 2Sales$1,200,000 $1,200,000 Cost of goods sold800,000 680,000 Gross margin400,000 520,000 Selling and administrative expenses300,000 330,000 Net operating income (loss)$100,000 $220,000 Additional information about the company is as follows:In Year 1, the company produced and sold 40,000 units of its only product.  In Year 2, the company again sold 40,000 units, but increased production to 50,000 units.  The company' variable production cost is $5 per unit and its fixed manufacturing overhead cost is $600,000 per year.  Fixed manufacturing overhead costs are applied to the product on the basis of each year's unit production (i.e. a new fixed overhead rate is computed each year).  Variable selling and administrative expenses are $2 per units sold.Required :a.Compute the unit product cost for each year under absorption costing and under variable costing.b.Prepare an income statement for each year, using the contribution approach with variable costing.c.Reconcile the variable costing and absorption costing income figures for each year.d.Explain why the net operating income for Year 2 under absorption costing was higher than the net operating income for Year 1, although the same number of units were sold in each year.