Can any one tell Cost of sales formula

correct answer will get brainlest

Consider the following potential events that might have occurred to global on december​ 30, 2016. for each​ one, indicate which line items in​ global's balance sheet would be affected and by how much. also indicate the change to​ global's book value of equity. a. global used $ 19.8$19.8 million of its available cash to repay $ 19.8$19.8 million of its​ long-term debt. b. a warehouse fire destroyed $ 4.9$4.9 million worth of uninsured inventory. c. global used $ 4.6$4.6 million in cash and $ 5.1$5.1 million in new​ long-term debt to purchase a $ 9.7$9.7 million building. d. a large customer owing $ 3.2$3.2 million for products it already received declared​ bankruptcy, leaving no possibility that global would ever receive payment. e. ​global's engineers discover a new manufacturing process that will cut the cost of its flagship product by more than 48 %48%. f. a key competitor announces a radical new pricing policy that will drastically undercut​ global's prices.