Betty Corp. sells one product and uses a perpetual inventory system. The beginning inventory consisted of 83 units that cost $19 per unit. During the current month, the company purchased 478 units at $21 each. Sales during the month totaled 355 units for $45 each. What is the number of units in the ending inventory? 561 units. 206 units. 83 units. 123 units. Attempts: 0 of 1 used