A Company Uses the Periodic Inventory System and the Following

A company uses the periodic inventory system and the following information is available. All purchases and sales are on credit.
$\begin{array}{|l|l|r|r|r|r|}\hline&&&&& \text { Unit } \\&&& \text { Unit } & \text { Total } &\text { Sales } \\&&\text { Units } & \text { Cost } & \text { Cost } & \text { Price } \\\hline 10 / 01 & \text { Inventory balance } & 30 & \$ 3 & \$ 90 \\\hline 10 / 06 & \text { Purchase } & 70 & 4 & 280 \\\hline 10 / 11 & \text { Purchase } & 45 & 5 & 225 \\\hline 10 / 16 & \text { Purchase } & \underline{50} & 6 & 300 \\\hline & \text { Goods available } & 195 & & \$ 895 \\\hline\\\hline 10 / 12 & \text { Sale } & 100 & & & \$ 10 \\\hline 10 / 20 & \text { Sale } & 60 & & & 11 \\\hline & \text { Goods sold } & 160 & & & \\\hline & & \\\hline 10 / 31 & \text { Inventory balance } & 35 \\\hline\end{array}$ 1. Prepare the general journal entries to record:
The October 6 purchase.
The October 12 sale.
2. Assuming the periodic inventory system is used, determine both the cost of the ending inventory and the cost of goods sold using the LIFO method for October.