please solve each problem and show the formula used to obtain each answer

1000 units $ 300 154 28 4 5 Quantity Produced Selling price Direct materials Direct manufacturing labor Indirect materials Indirect manufacturing labor Annual factory equipment depreciation Factory supplies Factory rent Factory utility Sales commissions (2% of sales) Administrative salaries Annual distribution 9 11 5 12 II-Calculate the following (You have to show your formula; for example, Gross margin = Revenue a) Total direct manufacturing costs per unit b) Total indirect manufacturing costs per unit c) Total variable indirect costs per unit d) Total fixed manufacturing costs (assuming production is 1000 units) e) Total fixed non-manufacturing costs (assuming production is 1000 units) f) Contribution margin per unit g) Total contribution margin when production is 1000 units h) Break even in units i) How many units East Company must sell to earn $20,000 operating income