Can you please help me solve this question with full working out

In the coming year, Kalling Company expects to sell 28,700 units at $32 each. Kalling's controller provided the following information for the coming year. Units production Direct materials (per unit) Direct labour (per unit) Variable overhead (per unit) Fixed overhead (per unit)* Selling expense (per unit) Selling expense (fixed) Administrative expense (fixed) 30,000 $9.95 $2.75 $1.65 $2.50 $2.00 $65,500 $231,000 *The fixed overhear per unit is based on 30,000 units produced Required: 1. Calculate the cost of one unit of product under absorption costing. [2 MARKS] 2. Calculate the cost of one unit of product under variable costing. [2 MARKS] 3. Calculate operating income under absorption costing for next year. [4 MARKS] 4. Calculate operating income under variable costing for next year. [4 MARKS] 5. Reconcile the net profits obtained under both the methods by using short-cut method [1 MARK] 6. The volume of manufacturing in a period has an effect on income calculated using absorption costing but has no effect on income calculated using variable costing. Explain. [2 MARKS]