Material X supplementary ledger information Transaction Type of transaction Number of units Purchase price / unit 1./01.03.2020 opening balance 500 units $3,00/unit 2./05.03.2020 sale 400 units 3./10.03.2020 purchase 50 units $2,80/unit 4./ 22.03.2020 sale 80 units Required: Calculate ENDING INVENTORY and COST OF SALES using LIFO and weighted average method. Show all calculations