Help me to do this with proper dates

Question 3 [14 points] The Holden Corp. company has the following purchases and sales during the year ended December 31, 2014. The units have a selling price of $65.00 per unit. a) Please fill in the table by calculating the dollar value of cost of goods sold and ending inventory, as well as the gross profit earned by Holden Corp. using the FIFO system. b) Prepare journal entries to record the following (assuming all sales and purchases are for cash): (a) The purchase on June 28 , (b) The sale on July 17. Enter the transaction letter as the description when preparing a journal entry. When a transaction requires two separate journal entries, use the same letter for both descriptions. Dates must be entered in the format dd/mmm (ie. 15/Jan)