Beginning Inventory, Purchases, and Sales Data for Hammers Are as Follows

Beginning inventory, purchases, and sales data for hammers are as follows:? $$\begin{array} { | l | c | l | l | } \hline & \text { Mar. } 3 & \text { Inventory } & 12 \text { units at } \$ 15 \\\hline & 11 & \text { Purchase } & 13 \text { units at } \$ 17 \\\hline & 14 & \text { Sale } & 18 \text { units } \\\hline & 21 & \text { Purchase } & 9 \text { units at } \$ 20 \\\hline & 25 & \text { Sale } & 10 \text { units } \\\hline\end{array}$$ Assuming the business maintains a perpetual inventory system, complete the inventory cards and calculate the cost of merchandise sold and ending inventory under the following assumptions:
(a) First-in, first-out? $\begin{array}{|l|l|l|l|}\hline ~\quad\quad\quad\quad&\quad~\quad\quad\quad\text { Purchases }\quad\quad\quad & \begin{array}{c}\quad\quad~~\quad\text { Cost of } \quad\quad\quad\quad\\\text { Merchandise Sold }\end{array} & \quad\quad\quad\quad\quad\text { Inventory }\quad\quad~ \\\end{array}$
$\begin{array}{|c|c|c|c|c|c|c|c|c|c|}\hline \text { Date } & \text { Qty. } & \begin{array}{c}\text { Unit } \\\text { Cost }\end{array} & \begin{array}{c}\text { Total } \\\text { Cost }\end{array} & \text { Qty. } & \begin{array}{c}\text { Unit } \\\text { Cost }\end{array} & \begin{array}{c}\text { Total } \\\text { Cost }\end{array} & \text { Qty. } & \begin{array}{c}\text { Unit } \\\text { Cost }\end{array} & \begin{array}{c}\text { Total } \\\text { Cost }\end{array} \\\hline \text { Mar. 3 } & & & & & & & & & \\\hline 11 & & & & & & & & & \\\hline 14 & & & & & & & & & \\\hline 21 & & & & & & & & & \\\hline 25 & & & & & & & & & \\\hline \text { Balances } & & & & & & & & & \\\hline\end{array}$ (b) Last-in, first-out $\begin{array}{|l|l|l|l|}\hline ~\quad\quad\quad\quad&\quad~\quad\quad\quad\text { Purchases }\quad\quad\quad & \begin{array}{c}\quad\quad~~\quad\text { Cost of } \quad\quad\quad\quad\\\text { Merchandise Sold }\end{array} & \quad\quad\quad\quad\quad\text { Inventory }\quad\quad~ \\\end{array}$
$\begin{array}{|c|c|c|c|c|c|c|c|c|c|}\hline \text { Date } & \text { Qty. } & \begin{array}{c}\text { Unit } \\\text { Cost }\end{array} & \begin{array}{c}\text { Total } \\\text { Cost }\end{array} & \text { Qty. } & \begin{array}{c}\text { Unit } \\\text { Cost }\end{array} & \begin{array}{c}\text { Total } \\\text { Cost }\end{array} & \text { Qty. } & \begin{array}{c}\text { Unit } \\\text { Cost }\end{array} & \begin{array}{c}\text { Total } \\\text { Cost }\end{array} \\\hline \text { Mar. 3 } & & & & & & & & & \\\hline 11 & & & & & & & & & \\\hline 14 & & & & & & & & & \\\hline 21 & & & & & & & & & \\\hline 25 & & & & & & & & & \\\hline \text { Balances } & & & & & & & & & \\\hline\end{array}$