Required information The following information applies to the questions displayed below) Stolte Trimble Corporation (STC) uses a perpetual inventory system. At the beginning of May, STC had 40 units of inventory, of which 20 units were purchased in March for $68 per unit and 20 units were purchased in April for $74 per unit. STC uses its perpetual inventory system to account for the following transactions ns unstes ot inventory to custoaners tor $158 per unte, on crede terms n/60, roo May 2 STC shipped 35 inventory to shipping point. purchased and received 30 units of inventory for $78 per unit, on credit terms n/45. shipped 30 units of inventory to customers for $158 per unit, on credit terms n/60, FOB May 4 STC shipping point