Unit sales price of the product "Y" belonging to an enterprise is 100 TL and the variable cost for this unit of product is 55 TL. The total fixed cost in the business for the period is 450000 TL. a. According to the above information, what is the production amount at the breakeven point of the enterprise? b. According to the above information, what is the total cost and total revenue of the enterprise at the breakeven point? c. According to the above information, what is the profit / loss of the business at the breakeven point?