2887. “Calculate the value of closing stock from the following according to Weighted Average method: 1st January, 20XX: Opening balance: 50 units @ Rs 4 Receipts: 5th January, 20XX: 100 units @ Rs 5 12th January, 20XX: 200 units @ Rs 450 Issues: 2nd January, 20XX: 30 units 18th January, 20XX: 150 units”