Shamrock Company sells discounted shoes to the fashion-oriented consumer. The following schedule relates to the company's inventory for the month of March: Shamrock Company uses the periodic inventory system. (a) Your answer is correct. Calculate Shamrock Company's cost of goods sold, gross margin, and ending inventory using: 1. FIFO ii. Weighted-average (Round calculations for cost per unit to 2 decimal places, e.3. 10.52.) i. FIFO ii. Weighted-average (Round calculations for cost per unit to 2 decimal places, e.g. 10.52.) eTextbook and Media (b) Calculate Shamrock Company's gross margin ratio using: (Round answers to 2 decimal places, e.s. 61.05%.) i. FIFO ii. Weighted-average Which cost formula produced the higher gross margin ratio