From the following information under periodic method, calculate the ending inventory using the weighted average method. Date No of units Unit Price SAR Total Cost SAR 5 7500 1500 1st Feb 121 Feb 25th Feb 2500 6 15000 3000 4 12000 34500 7000 3000 Total goods available Ending inventory a. SAR 7,500 b.SAR 14,786 C. SAR 34,500 d. SAR 14,506