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 Beginning inventory 90 units $31,500 5 Sale 60 units $27,300 9 Purchase 30 units $11,550 13 22230 Purchase 120 units $50,400 24 Sale 120 units $58,800 27 Sale 30 units $16,800 Purchase 45 units $20,790