The following costs result from the production and sale of 4,450 drum sets manufactured by Tight Drums Company for the year ended December 31, 2019. The drum sets sell for $295 each. The company has a 30% income tax rate.

Variable production costs
Plastic for casing $185,000
Wages of assembly workers 510,000
Drum stands 230,000
Variable selling costs
Sales commissions 175,000
Fixed manufacturing costs
Taxes on factory 5,000
Factory maintenance 10,000
Factory machinery depreciation 70,000
Fixed selling and administrative costs
Lease of equipment for sales staff 10,000
Accounting staff salaries 60,000
Administrative management salaries 140,000

Required:
Prepare a contribution margin income statement for the company.

For each of the following cases determine the ending balance in the inventory account. (hint: first, determine the total cost of inventory available for sale. next, subtract the cost of the inventory sold to arrive at the ending balance.)a. jill’s dress shop had a beginning balance in its inventory account of $40,000. during the accounting period jill’s purchased $75,000 of inventory, returned $5,000 of inventory, and obtained $750 of purchases discounts. jill’s incurred $1,000 of transportation-in cost and $600 of transportation-out cost. salaries of sales personnel amounted to $31,000. administrative expenses amounted to $35,600. cost of goods sold amounted to $82,300.b. ken’s bait shop had a beginning balance in its inventory account of $8,000. during the accounting period ken’s purchased $36,900 of inventory, obtained $1,200 of purchases allowances, and received $360 of purchases discounts. sales discounts amounted to $640. ken’s incurred $900 of transportation-in cost and $260 of transportation-out cost. selling and administrative cost amounted to $12,300. cost of goods sold amounted to $33,900.a& b. cost of goods avaliable for sale? ending inventory?