Sport Box sells a wide variety of sporting equipment. The following is information on the purchases and sales of their top selling hockey stick. The hockey stick sells for $125. Description Units Unit Cost Mar. 1 Beginning Inventory 15 $40 Mar. 3 Purchase 60 $45 Mar. 6 Purchase 110 $50 Mar. 17 Sale 55 Mar. 23 Purchase 50 $50 Mar. 31 Sale 140