Can someone help and show me the calculations you did to get the answers as well.

A company purchases inventory during the year in 4 batches, with unit and price amounts shown below: Batch # 2 Units 3,600 2,700 4,200 1.500 Price per Unit $3.40 $3.60 $3.70 $4.20 5,200 units were sold after Batch 2 was purchased, while 2,000 units were sold after Batch 3 was purchased. Required: 6) Calculate the weighted average price for each unit of inventory. 7) Calculate COGS using the weighted average method. 8) Calculate Ending Inventory using the weighted average method