This exercise stresses the relationships between the information recorded in a periodic inventory system and the basic elements of an income statement. Each of the five lines represents a separate set of information. You are to fill in the missing amounts. (Input all amounts as positive values except net loss which should be indicated with a minus sign. Omit the "$" sign in your response.) Beginning Net Sales Inventory Net Purchases Ending Inventory Cost of Goods Sold Gross Profit Expenses Profit or (Loss) a. 240,000 76,000 104,000 35,200 95,200 72,000 b. 570,000 73,000 280,000 264,000 20,000 C. 630,000 160,000 170,000 441,000 189,000 150,000 d. 810,000 450,000 135,000 234,000 260,000 e. 156,000 160,000 450,000 130,000 (15,000)