calculate the number and Total cost of the units available for sale during 2020

Synergy Company began 2020 with 14,000 units of Product X in its inventory that cost $7.20 per unit, and it made successive purchases of the product as follows: Mar . 7 21,000 units $ 8.00 each May 25 26,000 units $ 10.00 each Aug. 16,500 units $ 14.00 each Nov. 10 26,000 units $ 15. 50 each The company uses a periodic inventory system. On December 31, 2020, a physical count disclosed that 10,000 units of Product X remained in inventory. Required: 1. Calculate the number and total cost of the units available for sale during 2020. Number of units Total cost of the units