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 $49,500 5 Sale 60 units $42,900 9 Purchase 30 units $18,150 13 Purchase 120 units $79,200 24 Sale 120 units $92,400 .27 Sale 30 units $26,400 30 Purchase 45 units $32,670