help please... there is a part (a2) and a part (b) to this but i cant open them till this i guessed so if you might know the answers to those aswell feel free if not its fine

Saddlery Company sells leather saddles and equipment for horse enthusiasts. Saddlery uses the perpetua inventory system. The following schedule relates to the company's inventory for the month of May: Sales May 1 5 Cost $48,000 $41,600 9 13 Beginning inventory 120 units Sale 80 units Purchase 40 units Purchase 160 units Sale 160 units Sale 40 units Purchase 60 units $17,600 $76,800 24 27 $89,600 $25,600 30 $31,680 (a 1) Your answer is incorrect. Calculate Saddlery Company's cost of goods sold, gross margin, and ending inventory using FIFO. Cost of goods sold $ Gross margin $ Ending Inventory $