the right answer is A, I need the calculation

B. The Financial Calculator Company proposes to invest $12 million in a new calculator-making plant that will depreciate on a straight-line basis. Fixed costs are $3 million per year. A financial calculator costs $10 per unit to manufacture and sells for $30 per unit. If the plant lasts for four years and the cost of capital is 20 percent, what is the accounting break-even level of annual sales? (Assume no taxes.) At 300,000 units B. 150,000 units C. 381,777 units D. 750,000 units