Assume Joe's Appliance store began March with 9 HDTV's that cost $400 each. The sale price of each HDTV was $875. During March Joe's completed the following inventory transactions. All purchases and sales are on account: Assuming Joe's uses perpetual FIFO inventory Prepare the necessary journal entries for the transactions above. Post the journal entries to the appropriate T-account and calculate the ending balance Calculate Gross Margin. Assuming Joe's uses perpetual LIFO inventory Prepare the necessary journal entries for the transactions above. Post the journal entries to the appropriate T-account and calculate the ending balance. Calculate Gross Margin