Question four: (10 marks) The following data are available on flow inventory during 2019 for the Salt company which use perpetual system: data sold Data #units purchased 1/1/2019 7000 10/1/2019 20000 11/1/2019 (3000) 8/4/2019 8000 13/6/2019 12000 21/9/2019 7000 26/12/2019 5000 Unit cost 15 17.4 17.4 15.4 12.6 18.6 20.8 30/1/2019 01/02/2019 9/5/2019 11/6/2019 23/10/2019 27/12/2019 9000@$40 (1000)@30 12000@33 5000@27 12000@34 9000@22 Required: Calculate the ending inventory under moving perpetual at FIFO and weighted average methods