I need assistance with the attached income statement relationship please.

E7-2 E7-2 Supply the missing dollar amounts. Supply the Interpreting Amounts Based on Income Statement Relationships Cases A B C D E Sales Revenue $ 700 $ 900 Beginning Inventory $ 100 $ 200 $ 100 $ 800 $ 1,000 $ 50 Cost of Goods Cost of Available Goods Cost of Ending Purchases for Sale Sold Inventory $ 800 $ 300 $ 800 $ 150 $ 200 $ 300 $ 600 $ 650 $ 250 $ 900 $ - $ - Gross Profit $ 400 $ 500