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.)

Net Sales Beginning Inventory Net
Purchases Ending
Inventory Cost of
Goods Sold Gross Profit Expenses Net Income
or (Loss)
a. 300,000 76,000 104,000 35,200 155,200 72,000
b. 470,000 74,000 300,000 264,000 20,000
c. 630,000 190,000 170,000 441,000 189,000 140,000
d. 830,000 450,000 135,000 234,000 280,000
e. 156,000 250,000 350,000 130,000 (15,000)