a)Retro Clothiers Ltd. is a reseller of vintage clothing. At the beginning of the year there was $51,000 worth of inventory and at the end of the year there was $15,000 worth of inventory. If the inventory purchased during the year was worth $220,000, what is the cost of goods sold?

b)Calculate the breakeven revenue if the fixed costs are $5,000, and the contribution margin percentage is 20%

c)If the contribution margin per unit is $50 and there are fixed costs of $25,000, what is the breakeven cost of goods sold per unit?