2.1 Inventory valuation Jacob Limited are manufacturers of furniture. The following information related to office desks for July 2020: Date Details Units Cost per units 01 Opening inventory 5 R20 07 Manufacture 25 R25 13 Manufacture 30 R30 21 Manufacture 20 R35 29 Manufacture 10 R40 31 Sales to customers 70 Required: Calculate the value of closing inventory from the above information, using the following inventory valuation techniques: 2.1.1 Weighted average cost (6 marks) 2.1.2 First in first out (4 marks)