: Case Defence sells smart phone cases and uses the perpetual inventory system. The following is informa tion on the purchases and sales of Defender Box" cases. On October 1, Case Defence had 20 units with a unit cost of $ 14. [3:55 PM, 1/27/2021] VipeeN SharMa: Purchases Sales Date Units Unit Cost Units Unit Price Oct. 3 10 15 Oct. 6 15 $ 50 Oct. 12 20 17 Oct. 19 20 $50 Oct. 23 30 19 25 Oct. 30 50 Oct. 31 15 20 Required 1. Calculate the dollar value of cost of goods sold and ending inventory for the month of October using the following methods . a. FIFO bMoving weighted average. Round all unit costs to two decimal places and round all other numbers to the nearest dollar .