Marlow Company uses a perpetual inventory system. It entered into the following calendar$-$year $2011$ purchases and sales transactions.

Date Activities Units Acquired at Cost Units Sold at Retail

Jan. $1$ Beginning inventory $840$ units @ $ $44/$unit

Feb. $10$ Purchase $260$ units @ $ $40/$unit

Mar. $13$ Purchase $220$ units @ $ $20/$unit

Mar. $15$ Sales $460$ units @ $ $75/$unit

Aug. $21$ Purchase $220$ units @ $ $60/$unit

Sept. $5$ Purchase $340$ units @ $ $48/$unit

Sept. $10$ Sales $380$ units @ $ $75/$unit

Totals $1,880$ units $840$ units

Required:

$1$ Compute cost of goods available for sale and the number of units available for sale.$($Omit the $"$$$"$ sign in your response.$)$

Cost of goods available for sale $

Number of units available for sale units

$2$ Compute the number of units in ending inventory.

Ending inventory units

$3$ Compute the cost assigned to ending inventory using $($a$)$ FIFO, $($b$)$ specific identification$-$units sold consist of $510$ units from beginning inventory and $110$ units from the March $13$ purchase, and $($c$)$ weighted average cost.$($Due to rounding, the sum of Cost of Goods Sold and Ending inventory may not equal the Cost of Good available for sales. Round your per unit costs to $2$ decimal places. Round your final answers to the nearest dollar amount. Omit the $"$$$"$ sign in your response.$)$

Ending inventory

$($a$)$ FIFO $

$($b$)$ Specific identification $

$($c$)$ Weighted average cost $

$4$ Compute gross profit earned by the company for each of the three costing methods.$($Round your per unit costs to $2$ decimal places and inventory balances and final answer to the nearest dollar amount.Omit the $"$$$"$ sign in your response.$)$

Gross profit

$($a$)$ FIFO $

$($b$)$ Specific identification $

$($c$)$ Weighted average cost $