Required information [The following information applies to the questions displayed below] Sara's Boutique has the following transactions related to its top-selling Guccipurse for the month of October. Sara's Boutique uses a periodic inventory system. 2. Using FIFO, calculate ending inventory and cost of goods sold at October 31. Required information [The following information applies to the questions displayed below] Sara's Boutique has the following transactions related to its top-selling Guccipurse for the month of October. Sara's Boutique uses a periodic inventory system. 2. Using FIFO, calculate ending inventory and cost of goods sold at October 31