a company purchases inventory during the year in four batches, with unit and price amount shown below:

Batch 1 - 9,500 units @ $2.10 per unit Batch 2 - 4,300 units @ $2.08 per unit Batch 3 - 3,600 units @ $2.04 per unit Batch 4 - 7,200 units @ $2.01 per unit

10,800 units were sold after Batch 2 was purchased, while 3,400 units were sold after Batch 3 was purchased.

1. calculate cost of goods sold and ending inventory under the LIFO method, using the perpetual inventory system.

2. Calculate cost of goods sold and ending inventory under the lifo method, using the periodic inventory system