Isaiah Co sells rollerblades, model IX. that are popular with youth enthusiasts Information relating to ta's purchases of dunner shown below. Isaiah Co. Usos perpetual inventory system Date Explanation Units Unit Cost Total Cost Nov. 1 Inventory 25 31.100 27.500 Nov 12 Purchases 20 20.000 1.000 30 Nov 15 Sales Nov 24 Purchases 20 1.040 20.800 Nov. 25 Purchases 25 1.050 26.250 50 Nov 30 Sales Instructions: (a) Compute the ending inventory and cost of goods sold using FIFO and Weighted Average Method on 30 November (round up to 0 decimals)