a) Calculate Saddlery Companys cost of goods sold, gross margin, and ending inventory using weighted-average. (Round calculations for cost per unit to 2 decimal places, e.g. 10.52 and final answers to 0 decimal places, e.g. 61,052.)

b) Calculate Saddlery Companys cost of goods sold, gross margin, and ending inventory using FIFO.

c)Calculate gross margin for both ?

Saddlery Company sells leather saddles and equipment for horse enthusiasts. Saddlery uses the perpetual inventory system. The following schedule relates to the company's inventory for the month of May: Cost Sales May 1 180 units $99,000 Beginning inventory Sale 5 $85,800 120 units 60 units 9 Purchase $36,300 $158,400 13 Purchase Sale 24 240 units 240 units 60 units 90 units $184,800 $52,800 27 Sale 30 Purchase $65,340