Synergy Company began 2023 with 14,500 units of Product X in its inventory that cost $6.90 per unit, and it made successive purchases of the product as follows: The company uses a periodic inventory system. On December 31,2023 , a physical count disclosed that 10,500 units of Product X remained in inventory. Required: 1. Colculate the number and total cost of the units avallable for sole during 2023