Determine $(1)$ the ending inventory and $(2)$ the cost of goods sold under each of the assumed cost flow methods $($FIFO$,$ LIFO, and average$-$cost$).$ Prove the accuracy of the cost of goods sold under the FIFO and LIFO methods. $($Round answers to $0$ decimal places, e$.$g$.1,250.$ Use weighted$-$average unit cost rounded to $3$ decimal places for computations.$)$

FIFO

LIFO

AVERAGE$-$COST

The ending inventory

The cost of goods sold

$

$

$

$

$

$