The following information relates to Shamrock Ltd.'s inventory transactions during the month of August. All of the units sold were priced at $1,800 per unit. (a) Shamrock Ltd. uses the periodic inventory system. Calculate Shamrock's cost of goods sold, gross margin, and ending inventory for the month of August using: i. FIFO ii. Weighted-average (Round final answers to 0 decimal places, e.g. 61,052.)