From the following details you are required to compute the cost of goods sold and ending inventory Based on PERPETUAL SYSTEM of Sharjah International Manufacturing firm, which sells Item no PQZ 123 for September 2020. You are required to calculate them on the basis of following assumptions: A FIFO method B. LIFO method Date Details of purchases/sales Qty Nos Unit cost Total cost in $ in $ Opening inventory 90 20 1,800 Purchases 200 21 4,200 Sale 150 purchases 120 22 2,640 September 01 September 03 September 10 September 14 September 18 September 21 September 27 September 28 Sale 175 Purchases 200 23 4,600 Sale 125 Purchases 90 24 2,160